PMC PH-40 - Pump Seal Replacement; Metering Pump Removal

MAINTENANCE
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d. Using supplied Ball Seat Tool (TL-02), check for proper Ball Seat/Ball Seat
Gasket compression. Snug Seat up to ¼ turn maximum 30 ft-lbs (41 N-m).
Pump Seal Replacement
NOTE! Refer to Parts Identification Drawing for reference.
 When the Iso (A) Proportioning Pump Cylinder is disassembled for service, all
parts included in the Seal Kit (KT-05001-120 or KT-05001-080) should be
replaced.
 When the Poly (R) Proportioning Pump Cylinder is disassembled for service, all
parts included in the Seal Kit (KT-05002-120 or KT-05002-080) should be
replaced.
 When assembling Proportioning Pump lubricate all Seals, Piston Rod and Pump
Cylinder with #1 Lithium Grease to assist in assembly and minimize Seal
damage during re-assembly.
 When the Pump Line End Block is disassembled for service, all O-rings included
in the O-ring Kit (KT-05009) should be replaced.
 After reassembly of the Proportioning Pumps torque the Assembly Bolts to 30 ft-
lbs (41 N-m)
CAUTION! Use wooden or plastic tools or a brass brush for cleaning.
Do not use metal or abrasive tools that can scratch the contact
surfaces.
METERING PUMP REMOVAL
NOTE! If removing the Polyol side pump, skip steps 3 (three) and 4 (four).
1. Put machine in retract position.
2. Turn off main power and discharge all pressure gauges to 0 (zero).
3. Disconnect the bottom elbow on the Iso lube cylinder and drain all Iso lube.
4. Disconnect the top hose going to Iso lube cylinder then uninstall red plug.
5. Remove clevis pin.
6. Disconnect the hose on the pump flange.
7. Disconnect the Y-strainer from elbow.
8. Carefully remove the 4 (four) bolts and washers while holding the pump in place.