Nova-Tech LMI Series AA-B-C-E-J-P Metering Pumps - Manual (Page 37)

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IMPORTANT:Notecorrectorientationofeachcheckvalve.
5. Install the new spring in the Injection Check Valve.
 Depressurize and drain pipeline (or isolate I.C.V. point using
valves) so that I.C.V. can safely be disassembled.
10.0 Checking Pump for Proper Zero Position
(Stroke Knob)
1. With pump running, turn stroke knob counter-clockwise
toward zero or end of black or red band on dial.
2. LISTEN to the clicking as the pump is running. The pump
should operate quietly at the zero position (no clicking).
3. If the pump continues to click at zero or stops clicking before
zero is reached, the pump zero must be reset (see Section
10.1 or 10.2).
10.1 Type I - Push on Knob
Re-Zeroing and Stroke Knob
Disassembly and Assembly
`
1. Remove stroke knob from the pump by grasping the knob
firmly and pulling it toward you.
2. Pry off the yellow cap.
3. Place the knob on a flat surface.
4. Using needle-nose pliers, squeeze the inner section together
while lifting the outer section up.
5. Push the inner section back onto the “D” shaped stroke
shaft.
6. With the pump running, zero the pump by turning the inner
section of the knob counter-clockwise until the pump
stops clicking.
CAUTION
!