5-2 4181383 First Edition
HYDROSTATIC POWER TRAIN
5
Specifications
Test and Adjustment Specification
Repair Specifications
Portable In-Line Filter
Figure 5-1
When hydraulic components fail internally, debris from
the failed component can spread throughout the
hydraulic system causing additional damage.
This situation can be magnified when dealing with a
closed loop traction system where oil is not filtered. In the
event of a traction system component failure, It is
recommended that all traction system components be
disassembled and cleaned, or filtered using a portable
in-line filter available through your Jacobsen Dealer. The
portable in-line filter should also be used when testing
hydraulic systems or after replacing a failed component.
IMPORTANT
Always install the in-line filter so oil flows through
the filter before entering a component. Once filtering
has begun, never reverse the flow of oil, or debris will
be re-enter the system.
Specification
Traction Pump Flow gpm (lpm) 35 (132) at 2850 rpm
Charge Pump Flow
gpm (lpm) 10.5 (40) at 2850 rpm
Forward System Relief Pressure
psi (bar) 3625 (250) at 2850 rpm
Reverse System Relief Pressure
psi (bar) 3625 (250) at 2850 rpm
Charge Pressure
psi (bar) 275—285 (19—20) @2850 rpm
Hydrostatic Leakage Percentage
Ranges
0—10% = Good
11—20% = Marginal
21% and Beyond = Bad
Specification
Traction Pump—Servo Lock Nut
Torque
lb-ft (N·m) 15 ± 3 (20 ± 4)
Traction Pump Weight
lb (kg) 131 (59)
Front Wheel Motor—Check Plug
Torque
lb-ft (N·m) 8 ± 3 (10 ± 3)
Front Wheel Motor—Plug Torque
lb-ft (N·m) 13 (17)
Front Wheel Motor—Retainer Screw
Torque
lb-ft (N·m) 25 (34)
Front Wheel Motor—Valve Housing
Screw Torque
lb-ft (N·m) 63 (85)
Rear Wheel Motor—Valve Housing
Screw Torque
lb-ft (N·m) 37 (50)
Rear Wheel Motor Hub Nut
lb-ft (N·m) 200 ± 25 (271 ± 34)
Front Wheel Motor Hub Nut
lb-ft (N·m) 400 ± 25 (542 ± 34)
TN1367
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