07-03-19 Control # 091-09 6-3
600H SERIES OPERATOR MANUAL MAINTENANCE CHECKLIST
b. Dented barrels
c. Drift from oil leaking by piston
d. Leaks at rod seals, welds, or holding valves.
8. PTO drive line system for proper alignment, lubrication
and tightness.
9. Hydraulic hose and tubing for evidence of damage such
as blistering, crushing, or abrasion.
10. Top and bottom wear pads for excessive wear.
11. Inspect all electrical wires and connections for worn, cut
or deteriorated insulation and bare wire. Replace or
repair wires as required.
12. Extend and retract cables, sheaves, pins, and bearings
for wear or abrasion.
13. Main frame and stabilizer mount bolts for proper torque
(see Torque Chart).
14. Rotation bearing and gearbox mounting bolts for proper
torque (see Torque Chart).
15. Missing or unreadable warning labels.
16. Missing or unusable/unsafe condition of steps, ladders,
handrails, guards or seat.
Special Boom Inspection
If the boom has not been disassembled and inspected in the
last five years or 3,000 hours of use, the boom is to be
completely torn down to allow a thorough inspection of the
extend and retract cables, sheaves, and pins.
Stability
Stability of unit throughout working area. Check the stability
procedure in Installation Section of the Service Manual
annually or when any changes are made to crane or truck.
HOIST CABLE INSPECTION AND
MAINTENANCE
Inspection
All hoist cable in service needs to be inspected on a daily,
monthly, and quarterly basis. Cable which has been idle for a
period of a month or more must be given a thorough
inspection before it is placed in service. These inspections
should cover all types of deterioration including:
• Distortion such as kinking, crushing, un-stranding, bird
caging, main strand displacement or core protrusion.
• Loss of cable diameter in a short cable length or
unevenness of outer strands indicates the cable needs
to be replaced.
• General corrosion.
• Broken or cut strands.
• Number, distribution and type of visible broken wires.
• Core failure in rotation resistant ropes.
• Prior electrical contact with a power line or other electric
arc damage.
• A broken strand.
Only inspect the outer surface of a cable. Never attempt to
open the cable.
Daily Inspections
All cable in continuous service must be inspected at the
beginning of each work day. Inspect the eye end and length
of cable that is used in daily operation. The end should be
inspected for abrasion, corrosion, broken wires, and loose or
broken servings. Inspect the remainder of the cable length
used for daily operations for points showing kinks, sharp
bends, or any other evidences of damage or excessive wear.
Monthly Inspections
Inspect the eye end and length of cable normally used in
daily operations. Examine the rest of the cable for kinked,
crushed or otherwise damaged points.
Periodic Inspections
Inspect the eye end of the cable for greater wear than the
rest of the cable. If the cable is in good condition, reverse the
cable on the drum so that the wear is equalized along the
total length of the cable.
Wire Rope Replacement
It is difficult to determine the exact time for replacement of
wire rope (hoist cable) since many variable factors are
involved. Proper determination of the condition of a rope
depends upon the judgment of an experienced person. The
following reasons are sufficient for consideration of rope
replacement:
• Six randomly distributed broken wires in one rope lay or
three broken wires in one strand in one lay. The rope is
unsafe for further use if there are either three broken
wires in one strand (Breaks 2, 3, 4) or a total of six
broken wires in all strands in any one lay.
WARNING
Worn or Damaged Equipment Hazard!
Never use a worn or damaged wire rope. Death or serious
injury could result from using worn or damaged wire rope.
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