Bulletin 1531-001/USA
Pump/Motor Division
700 Series Service Procedure
Parker Hannifin Corporation
Hydraulic Pump/Motor Division
Greeneville, TN 37745 USA
17
15. Install lubricated bolts (1) and torque diagonally to
15 ft. lbs.
A) Increase torque diagonally 5 ft. lbs. on each
bolt.
B) Rotate the shaft by hand through several
rotations.
C) Repeat steps A & B until torque is 28 ft. lbs.
16. Turn motor right side up in the vice and install the
O-Ring (3) in the center block seal gland.
17. Place the commutator plate on the center block
with the square ring groove facing up. Align the
8 bolt holes with the 8 tapped holes in the center
block.
18. With the valve plate windows sharp edge facing
the commutator plate, place the valve plate over
the splines of the shaft. The plate should be
positioned one tooth off the opposite end valve
plate when viewing valve plate port timing with
respect to the commutator plate.
19. Install an O-Ring into the groove in the
commutator plate.
20. Place the inner over the splines of the shaft.
Position the inner so the semi-circular roll pockets
are between the rotary valve port windows.
21. Place the outer over the inner and insert the rolls
into the inner pockets.
NOTE: The difference between rolls and rollers
is that rolls have square ends and rollers have
radius ends.
22. Place the check balls (8) on their seats on the
commutator plate. Place the locating ring section
onto the commutator plate with the check ball
counterbored facing downward over the balls.
Align the 8 bolt holes with the commutator holes.
Place the rollers in position alternating long and
short to match up with the 4 dowels in the front
bearing housing (16).
23. Install an O-Ring (3) into the groove of the front
bearing housing (16). Place the front bearing
housing with O-Ring over the shaft and place onto
the locating ring. Be sure to align the 4 dowels
with the short dowels inside the locating ring and
to align the bolt holes in the locating ring. The bolt
pattern will only match one way.
Do not rotate the locating ring or
check balls will drop into the bolt
holes.
WARNING
24. Insert O-Ring seal (13) into the front bearing
housing (16).
25. Insert shaft (11). Gently tap in with a soft hammer,
rotating the shaft if necessary to align the splines.
For the 1.25" dia. shaft:
Place the thrust washer (11A) on the shaft and
place the thrust bearing (11A) on top of the thrust
washer. The grooves on the bearing washer must
face towards the shaft seal.
For the 1" dia. shaft:
There is only one thrust washer and it can be
assembled either way. The thrust bearing is
pressed in the front bearing housing.
26. Install lubricated bolts (1) and torque diagonally to
15 ft. lbs.
A) Increase torque diagonally 5 ft. lbs. on each
bolt.
B) Rotate the shaft by hand through several
rotations.
C) Repeat steps A & B until torque is 30 ft. lbs.
27. Place the flange with 2 dowels over the shaft and
onto the front bearing housing. Align the dowel
pins as you install the flange. Lubricate and install
the 4 socket head cap screws and torque to 25 ft.
lbs.
Solenoid Assembly
1. Place 4 check balls (21) on their seats on the
center block (9).
2. Place 5 O-Rings (22) in the grooves on the
solenoid block (23).
3. Place solenoid valve assembly (23) on the center
block. Insert bolts and torque to 15 ft. lbs.
THE MOTOR ASSEMBLY IS NOW COMPLETE
EXCEPT FOR KEYS, NUTS, ETC. AT THE TIME
OF INSTALLATION IF APPLICABLE. SEE FINAL
CHECKS.
Содержание 700 Series
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