Air Motor Service; Throat Packing Disassembly; Throat Packing Reassembly - Graco 965660 Instructions And User Manual

Air Motor Service

Air Motor Service Air Motor Service Air Motor Service

Throat Packing Disassembly

1. Follow the procedure
on page 19.
2. Remove the air motor cover (69). See Figure 5.
3. Disconnect the air motor (1) from the displacement
pump, as explained in displacement pump manual
307944.
4. Remove the three screws (29) holding the outlet
housing (18) to the bottom cylinder cap (4). Pull the
housing off the cap, being careful not to damage the
piston rod (17).
5. Remove the u-cup packing from the cap (4).
6. Remove the retaining ring (39) and the bearing (20)
from the outlet housing (18).

Throat Packing Reassembly

1. Lubricate the u-cup packing (19) and install it in the
bottom cylinder cap (4), with the lips facing up
toward the air motor (1). See Figure 5.
2. Install the bearing (20) and the retaining ring (39) in
the outlet housing (18).
3. Install the housing (18) on the cap (4).
4. Reconnect the air motor (1) to the displacement
pump, as explained in displacement pump manual
307944.
5. Install the air motor cover (69).
20
Proportioning Pump Removal
4
18
29
1
Lubricate
2
Lips face up, toward air motor (1)
Figure 5 - Air Motor
309239 Instructions - Parts List
Service
70
69
1
17
19
1 2
20
39
8761C