Hitachi GMAX II 3900 - Manual (Page 16)

Displacement Pump
16 310893L
Displacement Pump
Removal
1. Flush pump.
2. Stop pump with piston rod in its lowest position.
3. Do Pressure Relief, page 5.
4. Separate drain hose from sprayer
F IG . 15
5. Disconnect material hose from pump.
F IG . 16
6. Raise latch lock. Push latch open.
F IG . 17
7. F IG . 18. Ratchet open pump door.
a. Ratchet pump door forward.
F IG . 18
b. Twist latch u-bolt out of pump door recess.
c. Place u-bolt on pump door outer edge.
d. If pump door is stuck, do steps e., f. and 8., otherwise
go to step 9.
F IG . 19
WARNING
Read Injection Hazard, page 3; Burn Hazard, page 4