Textron Jacobsen Super LF 1880 Fairway Mower with ROPS, Service & Repair Instructions

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HYDRAULICS
8E-22
NOTE:
Be sure the gerotor, valve plate, and valve are
timed (Figure 8E-8).
Figure 8E-8. Gerotor, Valve Plate, and Valve
10.Install the inner and outer face seal to the balance
ring (Figure 8E-9).
Figure 8E-9. Face Seal
11. Install the balance ring on the valve with the pin
groove facing upwards.
12.Coat the springs and pins with petroleum jelly.
Install both springs and pins in the holes of the
manifold cover.
13.Carefully install the manifold cover on the valve
plate.
Center the manifold cover and balance ring. When
centered and aligned, push down on the cover
until contact with the valve plate occurs.
NOTE:
The mounting cover normally has a slight spring
load.
14.Install four capscrews and tighten to 36 to 37 ft-lbs
(49 to 50 Nm) torque.
INSTALLATION
1. Position motor in the front axle.
2. While supporting the motor, install four mounting
bolts and lock washers.
3. Remove the plugs from the hydraulic hoses and
motor. Using tags created during disassembly,
connect the hoses to the motor fittings.
4. Install key in motor output shaft.
5. Position hub over the output shaft and secure with
nut and cotter pin. Torque the front wheel hub to
nut to 400 ft-lbs (± 50 ft-lbs).
6. Install the brake caliper and support bracket.
Install the brake spring.
7. Install wheel and tire.
8. Start engine and check operation. Check for leaks
and repair as necessary.
Gerotor
Valve
Plate
Rotate valve
clockwise 1/2
tooth to engage
spline.
Any One of 6
Ports Open to
Outside of
Valve
Recess
Point
Largest
Pocket
Recess
Pin
Groove
Inner
Face
Seal
Balance
Ring
Outer
Face
Seal