9
The PERISTALTIC Series of metering pumps require a minimal amount of maintenance to
achieve optimal performance. Periodically check the squeeze tube for cracks, deterioration,
or swelling. The squeeze tube will typically need to be replaced about every 6 months
(chemical compatibility and duty cycle can cause this interval to vary). NOTE: squeeze tubes
are NOT a warranty item.
VERY IMPORTANT: When replacing squeeze tubes, DO NOT TWIST THE TUBES WHEN
FITTING THEM AROUND THE ROLERS. Insert them so they remain flat in the same plane.
(The writing on the tubes should be inline on both sides of the rollers.)
Appling lube to the squeeze tube once a month can extend the life of the tube, minimize wear
on other contacting parts, and promote smoother pump operation. Use Knight Tube Lube (P/
N 245-4-SQZLUBE) or an equivalent silicone-based lubricant.
1. Remove the faceplate of the pump.
2. Apply a thin bead of Tube Lube to the inner surface (the side that the rollers contact)
of the squeeze tube between the 9 o’clock and 3 o’clock positions. Avoid getting the
lube near the pinch points where the bottom of the faceplate grips the tube.
3. Put the faceplate back on the pump
Activate the pump under normal conditions—the lubricant will be evenly distributed as the
pump rotates.
CAUTION: To avoid severe or fatal shock, always disconnect main power when
servicing the unit.
MAINTENANCE
