Graco 223991, 215873, 222539, 222526, 223984, 204287, 222248 warranty Displacement Pump

9.Carefully guide the intake valve housing (28) up over the priming rod (32) and install it on the cylinder (39). Insert the four tie bolts (8) through the outlet housing

(26)and engage the holes in the intake valve hous- ing. Torque the tie bolts oppositely and evenly to 60 ft–lb (82 N.m).

10.Install the plate guide (31), plate (36), priming piston

(37)and nut (6) on the priming rod (32). If necessary, push down on the displacement rod (18) to provide sufficient clearance from the intake valve housing

11.Tighten the packing nut/wet–cup (21) just enough to prevent leakage – no tighter.

12.Check the alignment of the displacement rod (18) by inserting a size E (0.254 in. diameter) drill shank be- tween the packing nut/wet–cup (21) and the rod. If the drill shank cannot be passed freely around the

rod, tighten the tie bolt (8) on the side which is bind- ing.

13.Screw the connecting rod (53) into the upper cap (33). Insert the cotter pin (42) and tighten the locknut

(45).

14.Align the pump outlet on the outlet housing (26) with the optional outlet at the base of the air motor (1). Loosely screw the tie rod locknuts (44) onto the tie rods (52). Lubricate the o–ring (47) and the top thread of the connecting rod (53). TIghten the cou- pling nut (50) to attach the displacement pump to the motor. Insert the cotter pin (41).

15.Start the pump and run it slowly to check for binding. Adjust the tie rods as necessary , then torque the locknuts (44) to 40–50 ft–lb (54–68 N.m).

16. Reconnect the fluid and air lines. Reconnect the ground wire if it was disconnected during service.

DISPLACEMENT PUMP 204–641

REF. NO. 2

DISPLACEMENT 41

PUMP INCLUDES

ITEMS 3–39, 56–66

52

42

4

20

44

TORQUE TO 40–50 ft–lb (54–68 N.m)

*15 34

38 7

29

50

53

45

33

21 18

66 26

8

TORQUE TO

60ft–lb (82 N.m)

SEE DETAIL A

27*

17*

19

SEE DETAIL B

DETAIL A

21	18
	REF
REF
LIPS OF	64*
V–PACKINGS	THROAT
MUST
	GLAND/
FACE
	PACKING
DOWN
	STACK
26
REF
DETAIL B
*56
LIPS OF
PACKING
MUST
FACE UP
*35
38
REF

*27

11 32

31 28

Fig 2 37 6

39

28

3

SEE DETAIL C

30

36

DETAIL C

11 REF

*65

INTAKE

VALVE

GLAND/

PACKING

STACK

3 REF

LIPS OF V–PACKINGS MUST FACE UP

306–646 9