Remove Subplate And Rocker Assemblies - Graco Premier 16P239 Repair Parts

Replace Cylinder

Remove Subplate and Rocker Assemblies

1. Stop the pump at the middle of its stroke. Relieve
the pressure before performing any service.
2. Remove the two screws (13) and washers (51) hold-
ing the bottom cover (61) to the bottom rocker arm
cover (62). See F . 2, page 5
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3. Remove the pad (63, see F
top rocker assembly. Hold the stud (30) with a
wrench while unscrewing the nut (33). Pull the stud
(30) out and disassemble the rocker assembly.
Push the sleeve (31) out of the rocker arm (29).
Inspect the rocker arm, sleeve, and bearings (32)
for wear.
4. Disassemble the bottom rocker assembly as
explained in step 6.
5. Using a 17 mm box wrench, remove the capscrew
(43) and gasket (47) holding the exhaust manifold
(45) to the subplate (23). Remove the two liners (44)
from the cavities in the manifold. Check that the ver-
tical slot (V) in the manifold is clear of dirt or block-
age; clean with a brush or compressed air. See F
2, page 5.
6. Using an allen wrench, unscrew the eight socket
screws (41) holding the subplate (23) to the cylinder
(1). Remove the subplate and the gasket (24).
Inspect these parts for wear or damage.
7. Remove the two screws (42), the top rod fitting (20),
and the push rod (19) from the motor cap (2). Using
an o-ring pick, pull out the seal (21). Inspect these
parts for wear. Repeat for the bottom push rod
assembly.
8. Remove the piston and piston rod seal.
4
. 1, page 3) from the
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3A2715B