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3. Reinstall the spring (7) and gasket (27) on
the cylinder cap (34) and screw the cap
onto the cylinder (8). Screw the cylinder
into the air motor base (13). See F
Pump Lower Disassembly
1. Unscrew the air motor connecting ring (15).
Lay the pump on its side and rotate until
the ball on the pump connecting rod (37)
releases from the socket in the motor pis-
ton rod (35). Separate the motor from the
2. Unscrew the intake valve housing (29) from
the piston cylinder (58). Disassemble
3. Unscrew the piston cylinder (58) from the
pump frame (36).
In mid-2013 the fluid section was
upgraded to prevent threaded joints
from loosening due to vibrations.
Wrench flats were also added to
Series A and B pumps can be
upgraded with repair kit 24R989.
To repair the air motor, see Air Motor
Disassembly on page 15.
★ Support the Series A and B pump frame with a
strap wrench. Series C pumps have wrench flats.