Graco 3000cc Yard Vacuum User Manual


 
Repair
3A0540L 15
13. If Part No. 218742 accessory pump stand is used,
place the inlet valve housing and manifold assembly
on the pump stand. Install and tightly screw in the
three pump stand bolts.
14. Lubricate and install the new seals (3*, 5*) in the
inlet and outlet housings (2, 7). Set the cylinder (4)
and riser tubes (6) into place in the inlet valve hous-
ing (7). Set the outlet housing (2) onto the cylinder
and riser tubes.
15. Install the six cylinder capscrews (10), lockwashers
(11) and nuts (12). Tighten the capscrews oppo-
sitely and evenly to 81-88 N•m (60-65 ft-lb). See
F
IG
. 10.
16. Lubricate the seals (17*) and press one into each
side of the outlet valve housing (2). Press the seats
(13), with the unworn sides facing the balls, into the
outlet valve housing. Then install the balls (18) and
ball guides (16).
17. Apply removable (blue) Loctite
®
243 to entire length
of the screw (9) threads. Place the outlet manifold
(1) on the outlet valve housing (2) and install the
twelve screws (9) and lockwashers (8) loosely.
18. Tighten the inside four screws (9) oppositely and
evenly to 3 N•m (27 in-lb) to balance the load on the
valves. Then tighten all twelve screws oppositely
and evenly to 24-27 N•m (18-20 ft-lb). See F
IG
. 10.
19. Lubricate the throat packings and glands. Install the
spring (28) and one male gland (33†) in the throat
cartridge (27), then seven v-packings with the lips
facing down: one UHMWPE (30†), one leather
(31†), UHMWPE, leather, UHMWPE, leather, UHM-
WPE. Install the female gland (32†). Install three
v-packings with the lips facing up: UHMWPE,
leather, UHMWPE. Install the other male gland
(33†).
20. Lubricate the o-ring (52†) and install it on the
wet-cup (34). Install the wet-cup finger-tight.
21. Install the o-ring (52†) on the throat cartridge (27).
Apply lubricant to the throat cartridge threads then
screw the cartridge into the outlet housing (2).
22. Torque the cartridge (27) to 129-135 N•m (95-100
ft-lb).
23. Torque the wet-cup (34) to 95-102 N•m (70-75 ft-lb).
24. Reassemble the spring (35), TSL pump piston seal
(36), and o-rings (51).
25. Reassemble the manifold and bottle assembly (53),
cap (40), collar (41) and screws (56). Torque the
cap (40) to 34-40 N•m (25-30 ft-lb).
26. Reinstall the coupling nut and collars on the piston
rod (19).
27. Fill the cavity in the bottom of the motor shaft with
grease. Reconnect the lower to the motor as
described in your separate pump manual.