Displacement Pump Replacement
28 3A2244A
Displacement Pump
Replacement
Removal
1. Flush pump.
2. Stop pump with piston rod in its lowest position.
3. Perform Pressure Relief Procedure, page 9.
4. Separate drain hose from sprayer.
5. Disconnect hose from pump.
NOTE: It is recommended that the check valve be
repaired at the same time as the pump. For check
valve repair, see page 32 (Mark X units only).
6. Raise latch lock. Push latch open.
7. Ratchet pump door forward.
8. Twist latch u-bolt out of pump door recess.
9. Place u-bolt on pump door protrusion.
10. Ratchet pump door forward.
11. Open pump door.
12. Pull out pump pin and place in pin holder.
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