308017 15
Service
Reconnecting the Displacement Pump
1. Make sure the coupling nut (104) and the coupling
collars (105) are in place on the displacement rod
(1). See Fig. 4.
2. Orient the pump’s fluid outlet (8) to the air inlet
(CC) as was noted in step 4 under Disconnecting
the Displacement Pump. Position the displace-
ment pump (107) on the tie rods (102).
NOTE: Refer to Fig. 4 and the Torque Chart for proper
torque values for your pump.
3. If you removed the tie rods (102) from the air
motor (101), reinstall them using an 11 mm
wrench. Torque as specified.
4. Screw the nuts (106) onto the tie rods (102) and
torque as specified.
5. Screw the coupling nut (104) onto the connecting
rod (103) or air motor shaft loosely. Hold the
connecting rod flats with a wrench to keep it from
turning. Using an adjustable wrench, torque the
coupling nut.
6. Using a torque wrench in the square hole of the
supplied wrench (110), torque the packing nut (2).
7. Mount the pump and reconnect all hoses. Recon-
nect the ground wire if it was disconnected. Fill the
wet-cup (2) 1/3 full of Graco Throat Seal Liquid or
compatible solvent.
8. Turn on the air supply. Run the pump slowly to
ensure proper operation.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 9.
9. Before returning the pump to production, relieve
the pressure and retorque the packing nut (2).
PUMP TORQUE CHART (Refer to Fig. 4)
Pump
Model
Tie Rod
(102)
Tie Rod
Nut (106)
Coupling
Nut (104)
Packing
Nut (2)
222768,
237207,
246933
4 1 3 2
222769,
222770,
222778,
222813,
224660,
235626
5 1 3 2
237208,
237492,
237779,
237780
7 7 6 2
101
111
103
105
107
8
2
110
2
1
CC
Torque to 50–61 NSm
(37–45 ft-lb).
Torque to 27–34 NSm
(20–25 ft-lb).
Torque to 45–53 NSm
(33–39 ft-lb).
Torque to 81–89 NSm
(60–66 ft-lb).
Torque to 195–210 NSm
(145–155 ft-lb).
Torque to 20–25 NSm
(15–18 ft-lb).
Torque to 36–45 NSm
(27–33 ft-lb).
Fig. 4
1
3
4
2
102
104
106
Model 222768
President Pump
Shown
4
3
1
5
6
7
or
or
or 7
6
, 5 ,
7
0424A
