28
Dealer Service
MAN1248 (2/26/2018)
GEARBOX REMOVAL
(See Figure 19)
Figure 19
. Gearbox Assembly
1.
Disconnect the driveline from the tractor PTO and
remove from gearbox (6).
2.
Remove both hose clamps holding tubes to and
from motor from top of hose support (5).
3.
Disconnect gearbox shield (4) removing four M12
cap screws (1) and hose support (5).
4.
Remove set of four M12 cap screws (1) below
gearbox.
5.
At coupler, remove M12 fastener set (3 & 7).
6.
Slide gearbox (6) away from coupler (3) and hitch
mounting surface. Leave coupler attached to pump
(2) on hitch.
GEARBOX INSTALLATION
1.
Verify good working condition of coupler (3) and
clean mounting surface of hitch where gearbox (6)
mounts onto.
2.
Gearbox (6) should be mounted with breather port
facing upwards. Verification of correct output shaft
should be made by first rotating input shaft
counter-clockwise and identifying output shaft with
CCW rotation (while viewing output shaft). If
gearbox vent is incorrectly located, swap plug with
vent. Verify gearbox is filled correctly. (see gearbox
section of manual).
3.
Loosen and remove fastener set (7 & 8) from
coupler.
4.
Slide coupler onto appropriate output shaft (see
step 2) of gearbox (6) so that gearbox shaft
annulus aligns with fastener set hole. Apply and
tighten fastener set (7 & 8).
5.
Align gearbox (6) and coupler (3) combination onto
pump (2) spline. A minimum of 1-1/4 inches of
engagement is required. No lock of pump to
coupler is required.
6.
Align holes on bottom of gearbox (6) and holes of
the spacer place with slotted hose of hitch. Apply
blue Loctite #242 to four M12 cap screws (10) and
apply to gearbox (6). Torque to 85 lbs-ft.
7.
Apply gearbox shield (4) with two M12 cap screws
(1) hand tight in left holes.
8.
Apply hose support (5) on top of gearbox shield
aligning with two right holes. Apply M12 cap
screws (1). Tighten all four screws to
approximately 40 lbs-ft.
9.
Apply hose to motor and hose from motor to the
top of the hose support using clamps and fasteners
from step 2 of gearbox removal.
PUMP MAINTENANCE
Pump Removal
(See Figure 20)
Care should be taken to contain a small volume of
hydraulic oil which shall spill from removal of hydraulic
lines.
1.
Disconnect the driveline from the tractor PTO and
remove from gearbox.
2.
Close valve at bottom of hydraulic tank.
3.
Taking care to capture oil, remove pump supply
hose (6) at pump adapter (3).
4.
Remove 1/2" fastener set (8 & 12) at bypass valve
bracket (10) to hitch.
5.
Remove four M8 cap screws (9) from bracket (10)
and bypass valve (2). Bracket (10) is free to
remove at this step.
6.
Taking care to capture oil, remove hose to motor
(13) from top valve adapter (5).
1.
M12 x 1.75P x 30 mm HHCS
2.
Hydraulic pump
3.
Coupling
4.
Gearbox shield
5.
Hose support
6.
Gear box, 3-way
7.
M12 x 1.75P x 75 mm HHCS
8.
M12 x 1.75P Lock nut
9.
Sleeve
10. M12 x 1.75P x 35mm HHCS
11. Spacer plate
