{"id":221557,"date":"2025-12-31T02:23:47","date_gmt":"2025-12-31T02:23:47","guid":{"rendered":"https:\/\/www.solinst.com\/410-peristaltic-pump-instructions\/potentiometer-replacement-model-410-mk4-peristaltic-pump\/"},"modified":"2026-05-07T21:36:06","modified_gmt":"2026-05-07T21:36:06","slug":"potentiometer-replacement-model-410-mk4-peristaltic-pump","status":"publish","type":"page","link":"https:\/\/www.solinst.com\/en-gb\/products\/groundwater-samplers\/410-peristaltic-pumps\/410-peristaltic-pump-instructions\/potentiometer-replacement-model-410-mk4-peristaltic-pump\/","title":{"rendered":"Potentiometer Replacement Model 410 Mk4 Peristaltic Pump"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;H1 and breadcrumbs&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;792ca5bd-0808-46bd-9ce7-3bcb8e74f4d3&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;4b28f470-0d73-4e9d-b92d-e6f41f2cea24&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_font=&#8221;|700|||||||&#8221; header_font_size=&#8221;36px&#8221; custom_margin=&#8221;||5px|||&#8221; header_text_align_tablet=&#8221;&#8221; header_text_align_phone=&#8221;&#8221; header_text_align_last_edited=&#8221;on|desktop&#8221; header_font_size_tablet=&#8221;30px&#8221; header_font_size_phone=&#8221;26px&#8221; header_font_size_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h1 role=\"heading\" aria-level=\"2\" data-uw-rm-heading=\"level\">Potentiometer Replacement Model 410 Mk4 Peristaltic Pump<\/h1>\n<p>[\/et_pb_text][dsm_breadcrumbs disabled_on=&#8221;on|off|off&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; home_icon_text_color=&#8221;#d6d6d6&#8243; global_colors_info=&#8221;{}&#8221;][\/dsm_breadcrumbs][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;Mobile-Only Nav with Offset&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;4759a92f-4b27-4854-bb2c-299854634e93&#8243; global_module=&#8221;120567&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; width=&#8221;90%&#8221; custom_margin=&#8221;0px||||false|false&#8221; custom_padding=&#8221;0px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_code admin_label=&#8221;410 Peristaltic Pumps Mobile Nav &#8211; Select Dropdown&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_css_free_form=&#8221;select {||||      font-size: 1em; \/* Adjust font size *\/||      padding: 10px;   \/* Optional: Increase padding for better spacing *\/||      width: 100%;||      box-sizing: border-box;\/* Optional: Adjust width to fit the container *\/||      height: 50px;||}||||    \/* Style for dropdown options (fallback if needed) *\/||select option {||      font-size: 1.2em; \/* Ensures option text matches select styling *\/||      width: 100%;||    }&#8221; global_colors_info=&#8221;{}&#8221;]<select name=\"dropdown\" onchange=\"location = this.value;\"><!-- [et_pb_line_break_holder] --><option value=\"\">410 Peristaltic Pumps Menu<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/multilevel-systems\/403-cmt-multilevel-systems\/\">Peristaltic Pumps Main Page<\/option><!-- [et_pb_line_break_holder] -->  <!-- [et_pb_line_break_holder] --><option 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value=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-mk5-peristaltic-pump-operating-ins-117865\/410-mk5-operating-ins-117865.pdf\">-Mk5 Peristaltic Pump Operating Instructions (PDF)<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/groundwater-samplers\/410-peristaltic-pumps\/peristaltic-pump-instructions\/410-mk4-peristatlic-pump-operating-instructions\/\">-Mk4 Peristaltic Pump Operating Instructions<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/peristaltic-pump\/410-instructions.pdf\">&#8211;Download (PDF)<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/groundwater-samplers\/410-peristaltic-pumps\/peristaltic-pump-instructions\/pump-head-replacement-410-mk4\/\">-Mk4\/Mk3 Pump Head Replacement<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-peristaltic-pump-head-replacement-113953\/410-113953.pdf\">&#8211;Download (PDF)<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/groundwater-samplers\/410-peristaltic-pumps\/peristaltic-pump-instructions\/potentiometer-replacement-410-mk4\/\">-Mk4 Potentiometer Replacement<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-potentiometer-replacement-109903\/410-potentiometer-replacement.pdf\">&#8211;Download (PDF)<\/option><!-- 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value=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-motor-replacement-114332\/410-motor-replacement.pdf\">&#8211;Download (PDF)<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/groundwater-samplers\/410-peristaltic-pumps\/peristaltic-pump-instructions\/peristaltic-pump-motor-gear-inspection-and-lubrication\/\">-Mk4 Motor Gear Inspection and Lubrication<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-gear-inspection-lubrication\/410-gear-inspection-lubrication.pdf\">&#8211;Download (PDF)<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/groundwater-samplers\/410-peristaltic-pumps\/peristaltic-pump-instructions\/410-battery-clip-replacement\/\">-Battery Clip Replacement<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-clip-replacement-111799\/410-battery-clip-replacement-111799.pdf\">&#8211;Download (PDF)<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/groundwater-samplers\/410-peristaltic-pumps\/peristaltic-pump-instructions\/peristaltic-pump-12v-battery-holder-instructions\/\">-12V Battery Holder<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-12v-battery-holder-114675\/410-12v-battery-holder-114675.pdf\">&#8211;Download (PDF)<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/products\/data\/groundwater-samplers.pdf\">-Solinst Groundwater Samplers (PDF)<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/groundwater-samplers\/410-peristaltic-pumps\/peristaltic-pump-instructions\/potentiometer-replacement-410-mk3\/\">-Mk3 Potentiometer Replacement<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-potentiometer-replacement-109903\/410-mk3-potentiometer-replacement.pdf\">&#8211;Download (PDF)<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/groundwater-samplers\/410-peristaltic-pumps\/peristaltic-pump-instructions\/fuse-holder-replacement-model-410-mkiii\/\">-Mk3 Fuse Holder Assembly Replacement<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-peristaltic-pump-fuse-holder-assembly-replacement-110734\/410-peristaltic-pump-fuse-holder-assembly-replacement.pdf\">&#8211;Download (PDF)<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/groundwater-samplers\/410-peristaltic-pumps\/peristaltic-pump-instructions\/power-cable-assembly-replacement-410-mk3\/\">-Mk3 Power Cable Assembly Replacement<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-peristaltic-pump-power-cable-assembly-replacement-110793\/410-peristaltic-pump-power-cable-assembly-replacement.pdf\">&#8211;Download (PDF)<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/groundwater-samplers\/410-peristaltic-pumps\/peristaltic-pump-instructions\/410-mk3-control-board-replacement\/\">-Mk3 Control Board Replacement<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-peristaltic-pump-control-board-replacement-109708\/410-mk3-peristaltic-pump-control-board-replacement.pdf\">&#8211;Download (PDF)<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/groundwater-samplers\/410-peristaltic-pumps\/peristaltic-pump-instructions\/strain-relief-replacement-410-mk3\/\">-Mk3 Strain Relief Replacement<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-strain-relief-replacement\/410-strain-relief-replacement-112243.pdf\">&#8211;Download (PDF)<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><\/select>[\/et_pb_code][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; specialty=&#8221;on&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;5a5bca26-a9a5-4e6c-8fca-d64da3bdcd40&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_menu menu_id=&#8221;402&#8243; admin_label=&#8221;410 Peristaltic Pumps Main Nav&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;242faa89-ac4f-4e46-90fe-505e8c1eab79&#8243; global_module=&#8221;120318&#8243; 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background_enable_color=&#8221;on&#8221; background_image=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2024\/12\/405-water-flute-multilevel-groundwater-system-installation.webp&#8221; background_enable_image=&#8221;on&#8221; background_position=&#8221;top_center&#8221; custom_button=&#8221;on&#8221; button_bg_color=&#8221;#f58025&#8243; button_border_width=&#8221;2px&#8221; button_border_radius=&#8221;20px&#8221; button_font=&#8221;|600|||||||&#8221; background_last_edited=&#8221;on|desktop&#8221; global_colors_info=&#8221;{}&#8221; sticky_transition=&#8221;on&#8221;]<\/p>\n<h2><strong><\/strong><\/h2>\n<h2><strong><\/strong><\/h2>\n<h2><strong><\/strong><\/h2>\n<p>&nbsp;<\/p>\n<h2>Depth Discrete Groundwater Monitoring<\/h2>\n<p><b>Reduce Costs and Field Time<\/b><\/p>\n<p>[\/et_pb_slide][\/et_pb_slider][et_pb_slider disabled_on=&#8221;on|on|on&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; link_option_url=&#8221;https:\/\/connect.spohr-messtechnik.de\/spohr-10-percent-off?utm_source=solinst&#038;utm_medium=WC-global-sidebar-position2&#038;utm_campaign=spohr-lw-wlm&#8221; disabled=&#8221;on&#8221; global_module=&#8221;53561&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_slide heading=&#8221;Spohr Low Cost Water Level Meters&#8221; button_text=&#8221;10% OFF&#8221; button_link=&#8221;https:\/\/connect.spohr-messtechnik.de\/spohr-10-percent-off?utm_source=solinst&amp;utm_medium=WC-global-sidebar-position2&amp;utm_campaign=spohr-lw-wlm&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_text_color=&#8221;#000000&#8243; background_color=&#8221;RGBA(255,255,255,0)&#8221; background_enable_color=&#8221;on&#8221; background_image=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2025\/11\/spohr-lightweight-water-level-meter-10off-965&#215;500-1.webp&#8221; background_enable_image=&#8221;on&#8221; background_size=&#8221;contain&#8221; custom_button=&#8221;on&#8221; button_bg_color=&#8221;#f58025&#8243; button_border_width=&#8221;2px&#8221; button_border_radius=&#8221;20px&#8221; button_font=&#8221;|600|||||||&#8221; header_text_shadow_style=&#8221;preset3&#8243; global_colors_info=&#8221;{}&#8221; sticky_transition=&#8221;on&#8221;]<\/p>\n<h2\/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_slide][\/et_pb_slider][\/et_pb_column][et_pb_column type=&#8221;3_4&#8243; specialty_columns=&#8221;3&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_row_inner _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;3d68e16c-1ed2-447f-b17f-a63c20af3cf6&#8243; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][dsm_icon_list icon_font_size=&#8221;30px&#8221; list_alignment=&#8221;flex-end&#8221; text_indent=&#8221;10px&#8221; list_alignment_tablet=&#8221;flex-end&#8221; list_alignment_phone=&#8221;flex-start&#8221; list_alignment_last_edited=&#8221;on|desktop&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;|600|||||||&#8221; link_option_url_new_window=&#8221;on&#8221; global_colors_info=&#8221;{}&#8221;][dsm_icon_list_child text=&#8221;410 Mk4 Potentiometer Replacement PDF&#8221; font_icon=&#8221;&#xf1c1;||fa||900&#8243; icon_color=&#8221;#ff8500&#8243; url=&#8221;https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-potentiometer-replacement-109903\/410-potentiometer-replacement.pdf&#8221; url_new_window=&#8221;on&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; icon_color__hover_enabled=&#8221;on|hover&#8221; icon_color__hover=&#8221;#828282&#8243; text_text_color__hover_enabled=&#8221;on|hover&#8221; text_text_color__hover=&#8221;#7a7a7a&#8221;][\/dsm_icon_list_child][\/dsm_icon_list][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;3676f7e6-7b83-4698-94ce-2cc9fa9ae43d&#8221; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; hover_enabled=&#8221;0&#8243; border_width_all=&#8221;1px&#8221; border_color_all=&#8221;rgba(0,0,0,0.23)&#8221; global_colors_info=&#8221;{}&#8221; _module_preset=&#8221;e910b435-fe18-45d2-b351-bda808b1a267&#8243; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h2><strong>Tools and Materials Needed<\/strong><\/h2>\n<ol>\n<li>410 Potentiometer Repair Assembly for the Peristaltic Pump (#109588)<\/li>\n<li>2 mm (5\/64&#8243; Allen Key) (or Small Flat Screwdriver)<\/li>\n<li>12.7 mm (1\/2&#8243;) Spanner or Pliers<\/li>\n<li>8 mm (5\/16&#8243;) Socket Spanner (or Slot Head Screwdriver)<\/li>\n<\/ol>\n<p><img decoding=\"async\" src=\"\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-potentiometer-replacement-109903\/images\/410-potentiometer-assembly-1x.jpg\" alt=\"solinst mk4 peristaltic pump potentiometer assembly\" width=\"340\" title=\"Solinst MK4 Peristaltic Pump Potentiometer Assembly\"><\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.27.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221;]<img loading=\"lazy\" decoding=\"async\" src=\"\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-potentiometer-replacement-109903\/images\/410-mk4-peristaltic-pump-1x.jpg\" alt=\"solinst model 410 mk4 peristaltic pump 112981\" width=\"400\" height=\"195\" title=\"Solinst Model 410 Mk4 Peristaltic Pump 112981\"><\/p>\n<p>Solinst Model 410 Mk4 Peristaltic Pump (#112981)<\/p>\n<p><strong> <\/strong><\/p>\n<h2><strong>Instructions<\/strong><\/h2>\n<p><strong><\/strong><\/p>\n<ol>\n<li>Disconnect the Pump from the power supply.<\/li>\n<li>Use the socket driver to remove the four screws from the End Plate (opposite end from Pump Head).<\/li>\n<li>Carefully slide the Control Board out of the enclosure.<\/li>\n<p><img decoding=\"async\" src=\"\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-potentiometer-replacement-109903\/images\/410-remove-control-board-1x.jpg\" alt=\"solinst mk4 peristaltic pump control board showing potentiometer connection\" width=\"500\" title=\"Solinst MK4 Peristaltic Pump Control Board Showing Potentiometer Connection\">\n<\/ol>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.27.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<ol start=\"4\">\n<li>Use the Allen key to undo the screws on the Potentiometer Knob and remove the Knob.<\/li>\n<p><img decoding=\"async\" src=\"\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-potentiometer-replacement-109903\/images\/410-remove-knob-1x.jpg\" alt=\"removing potentiometer knob from solinst mk4 peristaltic pump\" width=\"500\" title=\"Removing Potentiometer Knob from Solinst MK4 Peristaltic Pump\">\n<\/ol>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.27.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<ol start=\"5\">\n<li>Use the spanner to unscrew the Retaining Nut from the Potentiometer (on the top of the pump housing), remove the small washer and push the Potentiometer into the housing.<\/li>\n<p><img decoding=\"async\" src=\"\/products\/groundwater-samplers\/410-peristaltic-pumps\/operating-instructions\/410-potentiometer-replacement-109903\/images\/410-potentiometer-stem-1x.jpg\" alt=\"potentiometer stem for solinst mk4 peristaltic pump\" width=\"500\" title=\"Potentiometer Stem for Solinst MK4 Peristaltic Pump\">\n<\/ol>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.27.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<ol start=\"6\">\n<li>Unplug the 3-Pin Plug of the old Potentiometer Assembly from the Control Board by pressing the sides and pulling out from the Board.<\/li>\n<li>Plug the 3-Pin Plug from the new Potentiometer Assembly into the Control Board. The plug is polarised so there is no risk of reverse polarity. <\/li>\n<li>Slide the Control Board into the enclosure in the slots, plugs facing down and the wires of the Potentiometer Assembly to the inside of the Control Board.<\/li>\n<li>Place the Potentiometer Stem through the opening in the pump housing, the side of the potentiometer with the wires facing out. Rotate the Potentiometer stem to the centre position, and align with &#8220;OFF&#8221;. Replace the small washer and tighten the Retaining Nut on the Potentiometer.  <\/li>\n<li>Slide the Potentiometer Knob onto the Potentiometer Stem and align the white indicator with &#8220;OFF&#8221;.<\/li>\n<li>Retighten the two screws on the Potentiometer Knob; do not over-tighten. Ensure when the Knob is turned, it rotates and stops at both &#8220;5&#8221; markings on the pump. <\/li>\n<li>Carefully push all wires into the housing and screw the End Plate back on the Pump.<\/li>\n<\/ol>\n<p>[\/et_pb_text][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;3676f7e6-7b83-4698-94ce-2cc9fa9ae43d&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_button button_url=&#8221;https:\/\/www.solinst.com\/products\/groundwater-samplers\/410-peristaltic-pumps\/get-quote.php&#8221; button_text=&#8221;Get Quote&#8221; admin_label=&#8221;410 get quote&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;c9e00792-1360-4998-8cf9-5f6772c944ba&#8221; global_module=&#8221;120346&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;3676f7e6-7b83-4698-94ce-2cc9fa9ae43d&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_heading title=&#8221;Related Products&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; title_level=&#8221;h2&#8243; title_font=&#8221;|700|||||||&#8221; title_font_size=&#8221;22px&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_heading][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; disabled_on=&#8221;off|off|off&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; border_width_bottom=&#8221;1px&#8221; border_color_bottom=&#8221;#d3d3d3&#8243; global_module=&#8221;119863&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2025\/09\/415-12v-submersible-pump.webp&#8221; alt=&#8221;Solinst Model 415 12V Submersible Pump&#8221; title_text=&#8221;Solinst Model 415 12V Submersible Pump&#8221; url=&#8221;https:\/\/www.solinst.com\/products\/level-measurement-devices\/103-tag-line\/&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; border_color_all=&#8221;#bcbcbc&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column_inner][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_2_line_height=&#8221;1.3em&#8221; custom_margin=&#8221;60px||||false|false&#8221; custom_margin_tablet=&#8221;0px||||false|false&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2><strong>415 12V Submersible Pump<\/strong><\/h2>\n<p>The <a href=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/415-12v-submersible-pump\/415.php\" title=\"Solinst 12V Submersible Pump\"><strong>Solinst 12V Submersible Pump<\/strong><\/a> provides an efficient means of purging and obtaining groundwater samples from 2&#8243; OD monitoring wells. The compact pump can sample from depths of 36.5 m (120 ft) below ground surface, and is easy to adjust the flow rates up to 13.5 L\/min (3.6 US gpm) in shallower applications. <\/p>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;https:\/\/www.solinst.com\/products\/groundwater-samplers\/415-12v-submersible-pump\/415.php&#8221; button_text=&#8221;12V Submersible Pump&#8221; button_alignment=&#8221;right&#8221; button_alignment_tablet=&#8221;center&#8221; button_alignment_phone=&#8221;center&#8221; button_alignment_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_size=&#8221;20px&#8221; button_text_color=&#8221;#000000&#8243; button_bg_color=&#8221;#FFFFFF&#8221; button_border_color=&#8221;#ff8500&#8243; button_border_radius=&#8221;20px&#8221; button_icon=&#8221;&#x3d;||divi||400&#8243; custom_padding=&#8221;0px|||||&#8221; button_text_size_tablet=&#8221;18px&#8221; button_text_size_phone=&#8221;16px&#8221; button_text_size_last_edited=&#8221;on|desktop&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; disabled_on=&#8221;off|off|off&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; border_width_bottom=&#8221;1px&#8221; border_color_bottom=&#8221;#d3d3d3&#8243; global_module=&#8221;119816&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2025\/09\/800m-mini-low-pressure-packer.webp&#8221; alt=&#8221;Solinst Model 800M Mini Low Pressure Packer&#8221; title_text=&#8221;Solinst Model 800M Mini Low Pressure Packer&#8221; url=&#8221;https:\/\/www.solinst.com\/products\/level-measurement-devices\/103-tag-line\/&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; border_color_all=&#8221;#bcbcbc&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column_inner][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_2_line_height=&#8221;1.3em&#8221; custom_margin=&#8221;60px||||false|false&#8221; custom_margin_tablet=&#8221;0px||||false|false&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2><strong>800M Mini Packer<\/strong><\/h2>\n<p>The <a href=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/800-low-pressure-packers\/index.php\" title=\"800M Mini Packer\"><strong>800M Mini Packer<\/strong><\/a> is 1 ft in length and is designed to fit in nominal 2&#8243; OD monitoring wells to temporarily isolate discrete zones for groundwater monitoring and sampling applications \u2013 available as a single and straddle packer setup.<\/p>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;https:\/\/www.solinst.com\/products\/groundwater-samplers\/800-low-pressure-packers\/index.php&#8221; button_text=&#8221;Mini Low Pressure Groundwater Packer&#8221; button_alignment=&#8221;right&#8221; button_alignment_tablet=&#8221;center&#8221; button_alignment_phone=&#8221;center&#8221; button_alignment_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_size=&#8221;20px&#8221; button_text_color=&#8221;#000000&#8243; button_bg_color=&#8221;#FFFFFF&#8221; button_border_color=&#8221;#ff8500&#8243; button_border_radius=&#8221;20px&#8221; button_icon=&#8221;&#x3d;||divi||400&#8243; custom_padding=&#8221;0px|||||&#8221; button_text_size_tablet=&#8221;18px&#8221; button_text_size_phone=&#8221;16px&#8221; button_text_size_last_edited=&#8221;on|desktop&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; disabled_on=&#8221;off|off|off&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; border_width_bottom=&#8221;1px&#8221; border_color_bottom=&#8221;#d3d3d3&#8243; global_module=&#8221;119793&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2025\/09\/880-well-mount-field-table.webp&#8221; alt=&#8221;solinst model 880 well mount field table&#8221; title_text=&#8221;Solinst Model 880 Well Mount Field Table&#8221; url=&#8221;https:\/\/www.solinst.com\/products\/level-measurement-devices\/103-tag-line\/&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; border_color_all=&#8221;#bcbcbc&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column_inner][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_2_line_height=&#8221;1.3em&#8221; custom_margin=&#8221;60px||||false|false&#8221; custom_margin_tablet=&#8221;0px||||false|false&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2><strong>Make Your Life Easier In The Field<\/strong><\/h2>\n<p>Consider making your life easier in the field by ordering one of our convenient <a href=\"https:\/\/www.solinst.com\/products\/field-equipment\/880-field-table\/field-table.php\" title=\"Solinst Field Tables\"><strong>Field Tables<\/strong><\/a>. We have two models available, Well-mount and Stand-alone, to keep your equipment organised and provide a clean, sturdy surface to hold your field tools. <\/p>\n<p>Well-mount Field Table &#8211; 115209<br \/>Stand-alone Field Table &#8211; 115312<\/p>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;https:\/\/www.solinst.com\/products\/field-equipment\/880-field-table\/field-table.php&#8221; button_text=&#8221;Convenient Field Tables&#8221; button_alignment=&#8221;right&#8221; button_alignment_tablet=&#8221;center&#8221; button_alignment_phone=&#8221;center&#8221; button_alignment_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_size=&#8221;20px&#8221; button_text_color=&#8221;#000000&#8243; button_bg_color=&#8221;#FFFFFF&#8221; button_border_color=&#8221;#ff8500&#8243; button_border_radius=&#8221;20px&#8221; button_icon=&#8221;&#x3d;||divi||400&#8243; custom_padding=&#8221;0px|||||&#8221; button_text_size_tablet=&#8221;18px&#8221; button_text_size_phone=&#8221;16px&#8221; button_text_size_last_edited=&#8221;on|desktop&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column_inner][\/et_pb_row_inner][\/et_pb_column][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;Adobe Analytics Code&#8221; _builder_version=&#8221;4.27.0&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;||4px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.27.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_code admin_label=&#8221;AA Code for this page&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<!-- SiteCatalyst code version: H.21. 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Use the socket driver to remove the four screws from the End Plate (opposite end from Pump Head). Carefully slide the Control Board out of the enclosure. Use the Allen key to undo the screws on the Potentiometer Knob and remove the Knob. Use the spanner to unscrew the Retaining Nut from the Potentiometer (on the top of the pump housing), remove the small washer and push the Potentiometer into the housing. Unplug the 3-Pin Plug of the old Potentiometer Assembly from the Control Board by pressing the sides and pulling out from the Board. Plug the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":221558,"parent":219685,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"folder":[412],"class_list":["post-221557","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Solinst MK4 Peristaltic Pump Potentiometer Replacement<\/title>\n<meta name=\"description\" content=\"Use the spanner to unscrew the Retaining Nut from the Potentiometer (on the top of the Peristaltic Pump housing), remove the small washer and push the Potentiometer into the housing.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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