Installation Instructions

81700-82100'82400 WSM,11770
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3 TRANSMISSION
Check and High Relief Pressure
A CAUTION
• When checking, park
the tractor on flat ground, apply the
parking brake.
1. Remove the 8 mm (0.31 in.) hex socket head plug from P1 (1)
or P2 (2) port (P1 is for forward and P2 is for reverse).
2. Assemble the HST adaptor A and threaded joint with the
gasket between them.
3. Install the assembled HST adaptor A and threaded joint to P1
(forward) (1) or P2 (reverse) (2) port.
4. Install the cable threaded joint in relief valve set pressure
tester and high pressure gauge
to threaded joint in order.
5. Run the engine at 2600 rpm.
6. Place the high-low shift lever in high.
7. Depress the speed control pedal approx. 10 mm (0.39 in.)
which rotates
the trunnion shaft 0.087 rad (5.0°).
Check and High relief 21.6 MPa
pressure (Oil temperature Factory spec. 220 kgf/cm
2
at 50°(, 122°F)
3129 psi
• IMPORTANT
• Measure
quickly so that the relief valve may not be in
operation more than
10 seconds.
•
NOTE
• High pressure gauge is 30 MPa (300 kgf/cm
2
,
4260 psi) full
scale.
(When reassembling)
Install
the 8 mm (0.31 in.) hex. socket head plug to the port
with O-ring.
40.70 to 94.93 N·m
Tightening
torque Plug (P1, P2 port)
4.15
to 9.68 kgf'm
30.02 to 70.02 ft-Ibs
(1) P1 Port (Forward)
(2)
P2 Port (Reverse)
3-S9
(3) P3 Port (Charge)