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SERVICE -
See Figure 2.
1. Turn off power to pump. Remove four tie down bolts.
2. Lift jack shaft and the attached diaphragm assembly from pump base.
3. Remove two diaphragm retainer screws and the diaphragm retainer.
4. Remove lock nut. Remove connecting rod and diaphragm from jack shaft,
then unscrew bolt to separate diaphragm and plates.
5. Check diaphragm for cuts and cracks. Check rod assembly bearing for
excessive wear. Replace if badly worn.
6. Loosely reassemble diaphragm, diaphragm plates, washer and diaphragm
bolt onto connecting rod. Firmly secure connecting rod to jack shaft with
the lock nut. Secure diaphragm to motor mount with the diaphragm
retainer and two screws.
7. Tighten connecting rod bolt.
VALVE REPLACEMENT
1. Turn off power to pump. Remove four tie down bolts.
2. Expose valves by lifting jack shaft and attached diaphragm assembly from
pump base. Remove and clean or replace valves.
3. Install valves, making sure rubber flapper is UP on intake and DOWN on
discharge.
4. Replace motor-mount-diaphragm assembly and fasten evenly to base with
the four tie down bolts.
PULSATION DAMPENERS REPLACEMENT
1. Disconnect power leads from pump and remove from mount.
2. Remove nine bottom cap screws and three bottom plate screws. Remove
bottom cap and plate. Pull out and replace pulsation dampeners.
3. Replace bottom cap, plate and screws. Tighten evenly to ensure air and
water seals.
4. Reinstall pump and reconnect power leads.
TROUBLESHOOTING
PROBLEM
Loss of suction to pump.
Rough or noisy operation.
CAUTION
POTENTIAL FOR COMPONENT INCOMPATIBILITY - FOR WATER ONLY.
CAUTION
MOTOR BASE COULD GET HOT DURING EXTENDED OPERATION.
PROLONGED CONTACT WITH SKIN MAY CAUSE BURN,
-
See Figure 2.
SOLUTION
-Air leak in suction line.
-Bilge pickup not submerged.
-Intake hose kinked or plugged.
-Fouled intake or discharge valve.
-Ruptured diaphragm.
-Intake or discharge hose kinked or plugged.
-Pump not mounted firmly.
-Loosened eccentric screw.
-Ruptured or collapsed pulsation dampener.
-
See Figure 2.
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