Clyde Machines, Inc.
15F2930-E Towbar Operation and Maintenance Manual
Maintenance Information and Schedules
Daily Inspection
Visually check entire towbar for physical damage – repair or replace parts if
necessary.
Check head for proper operation – damaged parts, binding, etc. - readjust or
replace as necessary.
Bi-Yearly Inspection
Check shear bolts by turning heads with a hand wrench – any binding indicates a
partially sheared bolt – replace if necessary.
Grease the axle lift pivots with the grease zerks provided.
o
Use Lithium EP2 or equivalent.
Check hydraulic hand pump for proper operation and adequate oil level.
o
If necessary to add oil, use ATF Fluid.
o
For extreme cold 5606 oil is acceptable
Check tire pressures – should be 24 P.S.I.
Check lunette ring for excessive wear – measured at thinnest point, ring cross
section should be no less than 1.25 inches. Replace if necessary.
If so equipped, check lunette and head retention bolt cushions for cracking –
replace if necessary.
Yearly Inspection
The wheels should be removed and the hub bearings repacked with grease.
o
Use Lithium EP2 or equivalent
As Required
When replacing shear bolts and/or retention bolt, tighten bolts only enough to
remove slack and then loosen one half turn. Bolts should turn freely with hand
wrench.
CAUTION!
Over-tightening
of shear bolts and/or retention bolt will cause bolts
to shear at a higher load than desired.
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