Rear Pump Rebuild Kit Installation - Graco PR70 Repair And Parts Manual

Rear Pump Rebuild Kit Installation

The pump shaft is installed with Krytox. Contact with
Krytox can lead to flu-like symptoms. The MSDS for
this material is available upon request.
505
1
F . 9
IG
Prepare Machine for Kit Installation
1. Drain the pump.
• If ball valves are installed, close the ball
valves then take several shots.
• If ball valves are not installed, empty the
tanks. Perform shots repeatedly until no mate-
rial comes out of the dispense valve.
312760Y
507
511
2
1 Torque to 350 in-lb (39.5 N•m).
2
Lube shaft with krytox grease prior to insertion into bearing.
3
Shaft seal (503) must be installed with open side facing the washer (512).
See Kits on page 77 for kit numbers.
513
514
508
503
510
502
509
2. Relieve pressure. See Pressure Relief Procedure,
page 14.
3. Shut down the machine. See Shutdown, page 14.
4. Disconnect the pressurized air input hose.
5. Remove shroud screws (2202, 2409). See F
on page 44 and F
506
501
504
512
3
3
ti12491a
. 21 on page 48.
IG
Repair
. 17
IG
33