11
Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F11
Bulletin HY30-5503-M1/UK
5. Install the guide spacer (with new o-rings) to the
barrel housing; make sure one of the cut-outs is in
the position shown, and leave room for the split shim
between the spacer and the housing .
Cut out
6. Install the split shim as illustrated. Make sure the
shim is properly located in the barrel housing recess.
Correct thickness of the shim should result in a gear
backlash of .05 to .20 mm. If any part of the rotating
group has been replaced, it might be necessary to
change to a shim of different thickness; backlash is
checked according to paragraph 12 (page 12).
7. Two teeth on the cylinder barrel and one tooth on
the ring gear are marked to ensure that the pis-
tons are in line with the cylinder bores. Position the
cylinder barrel so that the markings are visible in the
spacer cut-out as shown, this assures correct timing
of the shaft and the cylinder barrel
.
8. Locate the marked tooth of the shaft ring gear.
Note
If the shaft assembly has been taken apart, refer to
"Reassembly, Series F11-250" for instructions.
9. Position the shaft/piston assembly over the
housing/barrel assembly as shown, so that the timing
marks of the ring gear and cylinder barrel are lined
up. Locate each piston into the corresponding, previ-
ously marked cylinder bore.
10. If the timing marks don't match as illustrated,
carefully pull the shaft assembly out of mesh with the
ring gear and reposition correctly.
11. Install the bearing housing with a new shaft seal
on the shaft/bearing assembly, being careful not to
cut or otherwise damage the seal. Cross-torque the
cap screws according to specifications on page 3.
