Graco 3A0410D Manual De Usuario

. 5 for fluid cover and air valve fasteners. See 

. 6 for manifold fasteners.

NOTE: Fluid cover and manifold fasteners on the poly-
propylene pumps have a thread-locking adhesive patch 
applied to the threads. If this patch is excessively worn, 
the fasteners may loosen during operation. Replace 
screws with new ones or apply medium-strength (blue) 
Loctite or equivalent to the threads.

If fluid cover or manifold fasteners have been loosened, 
it is important to torque them using the following proce-
dure to improve sealing.

NOTE: Always completely torque fluid covers, then 
torque the manifold pieces together, then torque the 
assembled manifolds to the fluid covers.

Start all fluid cover screws a few turns. Then turn down 
each screw just until head contacts cover. Then turn 
each screw by 1/2 turn or less working in a crisscross 
pattern to specified torque. Repeat for manifolds.

Polypropylene and Stainless Steel: 40-45 ft-lb 
(54-61 N•m)
Aluminum: 55-60 ft-lb (75-81 N•m)

Manifold fasteners:
Polypropylene: 40-45 ft-lb (54-61 N•m)
Aluminum:

Refs 1-8: 11-21 ft-lb (15-28 N•m)
Refs 9-16: 55-60 ft-lb (75-81 N•m)

Refs 1-4: 110-120 in-lb (12-13 N•m)
Refs 5-12: 40-45 ft-lb (54-61 N•m)

Retorque the air valve fasteners in a crisscross pattern 
to specified torque.

Plastic Center Sections: 45-55 in-lb (5-6.2 N•m)
Aluminum Center Sections: 75-85 in-lb
(8.5-9.6 N•m)

Also check and tighten the nuts or bolts (X) holding the 
manifold feet to the mounting brackets.

Fluid Cover Screws

Air Valve Screws

ti16558a

ti16560a