New Holland 9090X, Service Manual

Page: 49 / 51

Hydrostatic drive - Pump and motor components
Motor - Install - Rear wheel motor -
9000 X NA
ATTENTION: The component weighs approximately 160 kg ( 352.7 lb ). Have a suitable lifting device ready.
1. Check that the motor is installed on the correct side of
the machine. These motors have a specific direction
of rotation. To ascertain the direction of rotation, check
the part number NEW HOLLAND on the manufacturer's
plate for the motor:
• 87672923 — right-hand motor.
• 87672924 — left-hand motor.
2. Slide the motor (1) into the wheel arm (2) and secure
it using the screws (3) . The plate (4) will be placed on
the motor side. The tightening torque of the screws is
500 N·m ( 4425.4 lb in )
3. Fit the installations (5) and connect the corresponding
hoses.
4. Fit the HP hose flange joints (6) and secure them with
grease. Fit the flanges on the motor by tightening the
screws
(7) .
COIL10GRH461A0B
1
5. Before starting the hydraulic motor, its housing must
first be filled. To do this:
• Remove the bleed plug
(B) , located above the motor,
by passing a spanner through an existing hole in the
wheel arm.
• Fit a hand pump to the end of the drainage hose at
the filter located at the front of the hydraulic reservoir
(see removal instructions)
Motor - Remove - Rear
wheel motor - (29.218)
• Pump oil into this hose until it runs out of the bleed
hole (B) .
• Re-fit the bleed plug
(B) .
• Remove the pump and connect the drainage hose
(9) .
COIL10GRH462A0B
2
6. Install the groundspeed sensor bracket (8) on the left-
hand motor only.
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