Maintenance
Torque Instructions
NOTE: All fasteners for the fluid covers, center
diaphragm joint, and manifolds 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, center diaphragm joint, or manifold
fasteners have been loosened, it is important to
torque them using the following procedure to improve
sealing.
NOTE: Always completely torque the fluid covers and
center diaphragm joint before torquing the manifolds.
Start all fluid cover or center diaphragm joint 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.
Fluid cover, center diaphragm joint, and manifold
fasteners: 100 in-lb(11.3 N•m)
Lubricate air valve fasteners prior to reassembly to
prevent galling. Retorque the air valve fasteners in a
crisscross pattern to specified torque.
Air valve fasteners: 80 in-lb(9.0 N•m)
Air Valve Fasteners
Fluid Covers and Center Diaphragm Joint
Manifolds
16
334014C
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