4FXM70EN - 8/2022
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6 Pump Maintenance
Always wear protective clothing, face shield, safety
glasses and gloves when working on or near your
metering pump. Additional precautions should be taken
depending on solution being pumped. Refer to MSDS
precautions from your solution supplier.
Do not change the settings in the Maintenace Mode.
6.1 Routine Inspection and Maintenance
e pump requires very little maintenance. However, the
pump and all accessories should be checked weekly. is is
especially important when pumping aggressive chemicals.
Inspect all components for signs of leaking, swelling,
cracking, discoloration or corrosion. Replace worn or
damaged components immediately.
Cracking, crazing, discoloration and the like during rst
week of operation are signs of severe chemical attack. If
this occurs, immediately remove chemical from pump.
Determine which parts are being attacked and replace them
with parts that have been manufactured using more suitable
materials.
6.2 How to Clean and Lubricate the Pump
When changing the pump tube assembly, the pump head
chamber, roller assembly and pump head cover should be
wiped free of any dirt and debris.
Although not necessary, 100% silicon lubrication may be
used on the roller assembly and tube assembly.
e motor does not require maintenance or lubrication.
6.3 Reverse Rotor Rotation
e pump rotor can reverse rotation by pressing REVERSE
ROTATION button.
In most applications, the tube will fail by developing a small
leak in the outlet side (pressure side) of the tube assembly.
By reversing the roller rotation, the wear point in the tube
is moved to the opposite side to the pump tube assembly,
increasing the life of the tube.
Reversing rotation, moves the outlet side (pressure side) to
the opposite side of the tube assembly, greatly increasing the
tube life.
Stop the pump before the tube failure occurs.
Disconnect power from the pump. Carefully purge any
pressure in the discharge line of the pump. Disconnect the
suction end tubing/piping and the discharge end tubing/
piping from the pump head tubing.
IMPORTANT! Change sides of the suction (inlet) and
discharge (outlet) tubing/piping. ere is no need to remove
the Pump Head Cover.
Double check all connections before starting the pump
NOTE: e pump tube will form a natural U-shaped curve.
Do not attempt to install the pump tube against the natural
U-shape direction as damage to the tube can result.
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