Dealer Service
29
MAN1248 (2/26/2018)
7.
Taking care to capture oil, loosen adapter (4) below
valve so that valve may be loosened and rotated
CCW. Adapter jam nut is to be loosened.
8.
Remove bypass hose (7) at adapter (5) swinging
hose upwards and tightening JIC nut at opposite
end so that oil does not drain from tank. Bypass
valve assembly is free to remove at this step.
9.
Remove 1" boss O-ring fitting (4) from top of pump
(1) and 1-1/4" fitting (3) below pump.
10.
Remove four 1/2" fastener set (8 & 11) from pump
mount. Pump is free to remove at this step.
Figure 20
.Pump Removal/Installation
Pump Installation
(See Figure 20)
NOTE:
Larger pump port is inlet port.
1.
Attach pump to hitch with pump inlet port pointing
downwards. Apply blue Loctite #242 to four bolts
(11). Slide pump spline into coupler and attach with
fastener set (8 & 11) as shown with nut against
pump flange. Torque fasteners in cross fashion to
85 lbs-ft torque.
2.
Attach 1" boss O-ring fitting (4) to top of pump (1)
and 1-1/4" fitting (3) below pump (1).
3.
Attach pump supply hose (6) to pump adapter (3).
4.
Loosely attach bypass valve assembly from step 8
above, to adapter (4).
5.
Once valve (2), is nearly in position with stem
pointing to rear, attach bypass hose (7). It may be
necessary to turn valve clockwise rotation while
tightening hose (7).
6.
Tighten adapter (4) jam nut below valve (2).
7.
Attach bracket (10) to valve with cap screw (9) and
to hitch with fastener set (8 & 12).
8.
Attach hose to motor (13) to top adapter (5).
9.
Open valve at tank. Verify oil level of tank is 5"
above bottom of dip stick.
10.
Review safety procedure for checking hydraulic
leaks and mower operation.
11.
Attach to tractor. Confirm proper cutter operation.
MOTOR MAINTENANCE
Motor Removal
(See Figure 21)
Secure and block unit and place deck level before
beginning this procedure.
1.
Close valve at tank.
2.
At deck, remove clamps.
3.
Being prepared to address some spilled oil, loosen
both JIC nuts and hoses (5 & 7) before and after
motor (1). Once nuts are free to rotate by hand,
loosen and remove both hoses (5 & 7) from motor
simultaneously, then elevate hoses up and away
from deck. Take care not to drain excessive
amounts of oil from hoses, secure in upright and
elevated position.
4.
Remove 1" O-ring boss fittings (6) from before and
after motor.
5.
Loosen four 1/2" fastener set (2 & 3) between
motor (1) and spindle flange (8). Motor (1) is free to
remove at this step. Cover spindle flange keeping
foreign material out of internals.
1.
Hydraulic pump
2.
Bypass valve
3.
Adapter, 1" JICM x 1-1/4" ORBM
4.
Adapter, 1" ORBM
5.
Adapter, 1" JICM x 1" ORBM
6.
Pump supply hose
7.
Bypass hose
8.
1/2 NC Flange lock nut
9.
M8-1.25P x 20 mm HHCS
10. Bypass bracket
11. 1/2 NC x 2 HHCS, GR5
12. 1/2 NC x 1-1/2 HHCS, GR5
13. Hose to motor
