far enough to secure a piston ring compressor over
the vanes (9) and around the rotor (8).
Drain all fluid from the motor and thoroughly clean all
exterior surfaces. Prepare a clean, lint-free surface
on which to lay the internal parts of the motor.
and vanes the remainder of the way out of the cam
Secure the motor in a vise or other suitable
Release the tension on the compressor and re-
holding fixture with the shaft (18) extended down.
move the vanes (9) and vane springs (10) from the
Remove the screws (1) and remove the end cap
(2) from the body.
10. Remove the dowel pin (11) from the port plate
Remove the rubber seal ring (3) from the end
11. Thread two No. 10-24 screws into the puller
holes in the port plate assembly (12) and remove it
Check the needle bearing (4) in the end cap. If it
is worn or damaged, replace it.
from the body (21).
Remove the dowel pin (5) from the cam ring
12. Remove the special setscrews in the side. Re-
move the shuttle spool from the drilled passage. The
drilled holes in the port plate must be clean and free
Thread two No. 10-24 screws in the two tapped
holes provided as puller holes in the cam ring (7) and
Remove the rubber seals (13 and 14).
remove the cam ring assembly (6) as a unit (7, 8, 9,
Remove the snap ring (15) from the body (21).
15. Press on the external end of the shaft (18) and
remove the shaft and bearing (17) from the body.
the cam ring assembly, lightly tap the
outside of the body while lifting the as-
16. Remove the felt wiper (20) and shaft seal (19)
sembly. This will help in removing die
from the body.
cam ring, rotor, vanes, and springs as a
CLEANING AND INSPECTION.
Dirt is the major cause of wear and motor
The vanes are held against the cam ring
failure. Cover all parts after cleaning to
by tension from the springs in the rotor.
prevent dust and dirt from settling on them.
If the rotor is pulled from the cam ring with
All surfaces should b coated with a film of
no protection, tension from the springs will
hydraulic lubricating oil, after they have
throw the vanes out in all directions. The
following procedure must be followed when
disassembling the rotor and vanes from the
1. Wash all metal parts in cleaning solvent (Stod-
dard Solvent or equal) and dry thoroughly.
2. Inspect the seals for wear, breaks, cuts, and
Place the cam ring assembly on a clean, fIat
surface. Push the rotor and vanes from the cam ring