16
THE OILGEAR COMPANY
Bulletin 947023
The rotating group weight is heavy. Be
careful not to damage cylinder wear
surface which mates against the valve
plate, bearing diameters or piston shoes.
Use proper lifting techniques and
assistance from others to prevent
personal injury.
The rotating group can now be carefully installed
over the end of the drive shaft
(301)
and into the
pump housing
(001)
.
When installing the rotating group, support
the weight of the cylinder barrel
(101)
, as
cylinder spline is passed over the tailshaft,
to avoid scratching or damage.
4. Push cylinder forward until the cylinder spline
reaches the drive shaft spline and rotate
slightly to engage shaft splines. Continue to
slide cylinder forward until it encounters the
cylinder bearing
(202)
. Lifting the rear of the
shaft slightly helps the cylinder
(101)
and the
cylinder bearing
(202)
engagement. Continue
pushing the cylinder forward until the piston
shoes contact the swashblock; the back of the
cylinder should be located approximately 0.4
inches (10,2 mm) outside the back of the pump
housing.
On thru-shaft pumps without another pump
or device connected to them, slide
assembly onto the shaft
(301)
and secure
cap assembly
(307, 309)
in with socket
head shoulder screw
(308)
.
VALVE PLATE GROUP
1. Place the pump housing on a bench with the
open end facing up.
2. Install new O-rings
(404)
and
(411)
on the
housing.
3. Position the valve plate
(401)
on pins
(005)
and
housing. Make sure the end of shaft engages
the bushing.
4. Hand-tighten cap screw
(403)
closest to O-ring
(404)
first, then alternately tighten the other cap
screws. On thru-shaft units connected to
another pump or device, install coupling
(501)
.
Refer to
PREPARATION
and
INSTALLATION
when pump is ready to be returned to service.
!
WARNING
NOTE
NOTE
