Air Cylinder Kit Installation - Graco PR70 Repair Parts

Repair

Air Cylinder Kit Installation

406
412
407
402
1
414
412
Prepare Machine for Kit Installation
1. Relieve pressure. See Pressure Relief Procedure,
page 13.
2. Shut down the machine. See Shutdown, page 13.
3. Disconnect the pressurized air input hose.
4. Remove shroud screws (2202, 2409). See F
on page 36 and F . 15 on page 41.
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5. Remove the shroud (117, 214). See F
page 34 and F . 15 on page 41.
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26
417
412
411
4
403
4
419
413
415
422
415
409
410
1
Torque to 41 in-lb (4.6 N•m).
2
Torque to 350 in-lb (39.5 N•m).
3
Torque to 100 ft-lb (135 N•m).
4
Coat all sliding surfaces with lubricant, part 115982.
5
Apply sealant tape to npt fittings.
. 11
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. 10 on
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420
405
401
412
418
404
2
408
414
Disassemble the Air Cylinder
6. Remove the incoming power bracket (110) from the
machine by removing the two attachment
screws (109). See F
7. Remove the two solenoid valves (407, 408) from the
cylinder blind end block (418) by removing the three
socket head cap screws (402).
8. Use an open-end wrench to remove all hex
nuts (103, 100b, 100d) connecting the piston rod to
the drive block. See F
9. Remove the four screws (108) that attach the cylin-
der rod end block (417) to the frame. See F
page 33. Access the screws through the four holes
416
411
4
ti12490a
. 9 on page 33.
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. 9 on page 33.
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. 9 on
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312760A