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8. Make sure the mating faces of the manifold (29)
and valve plates (25) are completely clean. Lubri-
cate the plates and place a seal (19) on each one,
then install the plates in the manifold (29). Rein-
stall the adjusting screws (36) and nuts (34). See
Fig. 4.
WARNING
The openings in the valve plates (25) are razor
sharp. Be careful not to cut yourself when checking
or handling them.
9. Place the springs (30) and air director valves (22)
into the valve housing (23). Hold them in place
with your fingers and install the air manifold (29)
over the housing. Release the director valves.
Check to be sure that the housing moves up and
down freely, then torque the screws (14) holding
the manifold to the cylinder to 34 N.m (25 ft–lb).
Refer to Fig. 4.
10. Lubricate the housing (52), spring (31), and pin
(11) with waterproof grease. Install the pin in the
housing. Check that the mating surfaces of the
guide (51) and retainer (47) are smooth; rough sur-
faces can cause stalling. Assemble the housing
and spring into the guide. Slide these assembled
parts into the manifold (29). Make sure the pin (11)
is aligned with the slot (Q) of the housing (23). Lu-
bricate the o-ring (9) and place it on the retainer
(47). Screw the retainer into the manifold (29). Re-
peat this step for the other side. See Figs. 8 and 9.
11. Install the bumper (35), gasket (53*) and manifold
cap (28). Reinstall the gasket (69). See Fig. 4.
12. To install the shield (54), perform step a. or b., as
applicable.
a. For Model 215–255: Install the o-ring (18), lift
ring (26), screws (12), lockwashers (3), air in-
let assembly (56) and shield (54). Torque the
screws to 12–16 N.m (9–12 ft–lb).
Service
b. For Model 237–001: Install the o-ring (18), lift
ring (26), screws (12), lockwashers (3), air in-
let fitting (56), air tube (83), mufflers (76), and
shield (54). Torque the screws to 12–16 N.m
(9–12 ft–lb).
13. Test the motor at 15–30 psi (1–2 bar) before re-
connecting to the pump, to be sure it operates
properly.
14. Reconnect the motor to the displacement pump,
remount the pump and connect the air and fluid
lines. Reconnect the ground wire before operating
the pump.
Torque to 28–34 N.m (21–25 ft–lb).
1 mm (0.039 in.).
63
46
Q
Fig. 8
11
52
47
Fig. 9
29
31
Lubricate with light
51
waterproof grease.
9
23
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