SECTION 3 - LUBRICATION AND MAINTENANCE
3-4
CHECKING HYDRAULIC CONNECTIONS
Check that all hoses and adapters have been
tightened and that they do not leak.
Repairing Hydraulic Cylinders
Disassembly, repair and assembly of hydraulic
cylinders requires special tools to prevent damage to
internal components. We recommend that a cylinder
that needs repair should be repaired by an
authorized dealer.
Checking Loader Frame Hardware
Hardware torque should be checked immediately
after installation, and several times after a short
period of use. Improperly tightened hardware may
cause structural damage to loader and/or tractor.
Check that all capscrews are tightened to the
specified torque, after 10 hours of operation and then
every 50 hours of operation. Please refer to the table
below for torque values.
Hardware Tightening Chart
Tighten all the capscrews on the loader and
mounting bracket hardware to the values specifiec in
the table below, except in the cases where the
tightening torque is specified in the assembly
instructions.
The torques specified below apply to clean, dry
threads. Lubricated threads will result in the fastener
being overtightened. Damaged or dirty threads result
in undertightened.
A torque multiplier may be needed when tightening
capscrews to high torque values.
Grade 5 (Class 8.8) Ca pscrew
Diameter Torque
1/4 in 10 ft-lb (13.6 N⋅m)
5/16 in 20 ft-lb (27.1 N⋅m)
3/8 in 35 ft-lb (47.5 N⋅m)
7/16 in 55 ft-lb (75 N⋅m)
1/2 in 85 ft-lb (100 N⋅m)
5/8 in 170 ft-lb (230 N⋅m)
3/4 in 300 ft-lb (405 N⋅m)
M8 27.1 N⋅m (20 ft-lb)
M10 54.2 N⋅m (40 ft-lb)
M12 94.9 N⋅m (70 ft-lb)
M14 119.3 N⋅m (88 ft-lb)
M16 189.8 N⋅m (140 ft-lb)
M20 264.4 N⋅m (195 ft-lb)
Grade 8 (Class 10.9) Capscrew
Diameter Torque
1/4 in 11 ft-lb(14.9N⋅m)
5/16 in 24 ft-lb (32.5 N⋅m)
3/8 in 44 ft-lb (59.7 N⋅m)
7/16 in 71 ft-lb (96.3 N⋅m)
1/2 in 114 ft-lb (154.6 N⋅m)
5/8 in 222 ft -lb (301 N⋅m)
3/4 in 325 ft-lb (440.6 N⋅m)
M8 32.5 N⋅m(24 ft-lb)
M10 63.7 N⋅m(47 ft-lb)
M12 108.4 N⋅m(80 ft-lb)
M14 176.3 N⋅m (130 ft-lb)
M16 271.2 N⋅m (200 ft-lb)
M20 542.3 N⋅m (400 ft-lb)
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