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22 3A1570A
Repair
Disconnect Pump
NOTE: See manual 309577 for pump repair instructions.
1. Turn main heater power OFF .
2. Follow Flushing, page 14.
3. Follow Pressure Relief Procedure, page 13.
4. Follow Park instructions, page 14.
5. Shut off both feed pumps and close both inlet supply
valves (F).
6. Shut off inlet air ball valve (G)
7. Remove screws (13, 15) and pump covers (63).
8. Disconnect A side (21) and B side (23) steel outlet
tubes from adapters (312).
9. Remove adapter (312) from fluid outlet (M).
10. For A Side pump, disconnect barb fitting (318),
elbow fitting (317), and two pipe plugs (324).
NOTE: It is not necessary to cut tubes connected to
barb fittings.
Unless otherwise noted, all repair procedures must
be completed with incoming power switched OFF
and locked out at the source. Any electrical repair or
troubleshooting required beyond the scope of this
manual must be performed by a qualified electrician.
Shut off air inlet ball valve and shut off all air supply
pressure.
Air motor shaft, yoke, pump rod and connecting rod
move during operation. Moving parts can cause
serious injury such as pinching or amputation. Keep
hands and fingers away from connecting rod during
operation.
F
F
G
ti17988a
13
63
63
ti17989a
15
15
13
21
23
324
317
312
312
ti17990a
318
M
M