Manitowoc National Crane NBT40-1 Series User Manual

National Crane 3-29-2018 Control # 610-00 8-3
NBT40-1 SERIES OPERATOR MANUAL MAINTENANCE CHECKLIST
8
4. Boom angle and boom length indicator for accuracy over
full range.
5. Hydraulic systems for proper operating pressure.
6. Outrigger pads for excessive wear or cracks.
7. Check cylinders for following:
a. Damaged rods
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 boom 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 jack mounting bolts for proper torque,
refer to the Service Manual.
14. Rotation bearing and gearbox mounting bolts for proper
torque, refer to the Service Manual.
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 seven 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 lifting equipment
or truck chassis.
Hoist Rope Inspection And Maintenance
Crane may be equipped with synthetic hoist rope or wire
rope.
NOTE: Hoist rope may be purchased through Manitowoc
Crane Care.
For detailed information concerning synthetic hoist rope,
refer to K100™ Synthetic Crane Hoist Line Manual P/N
9828100734 available by contacting Manitowoc Crane Care.
During installation and setup, care must be taken to avoid
overlap and crossing of wire rope and synthetic hoist ropes.
Ensure that crane surfaces such as wear pads, sheaves, etc
have not been damaged in a manner that can then damage
the synthetic hoist rope.
Hoist rope should be inspected daily at each shift, monthly
and annually using a comprehensive inspection in
accordance with the following information excerpted from a
National Consensus Standard as referenced by Federal
Government Agencies. Recommended inspection intervals
may vary from machine to machine and may vary based on
environmental conditions, frequency of lifts, and exposure to
shock loads. The inspection time intervals may also be
predetermined by state and local regulatory agencies.
Any deterioration observed in the hoist rope should be noted
in the equipment inspection log and an assessment
concerning hoist rope replacement should be made by a
qualified person.
Keeping Records
A signed and dated report of the hoist rope’s condition at
each periodic inspection must be kept on file at all times. The
report must cover all inspection points listed in this section.
The information in the records can then be used to establish
data which can be used to determine when a hoist rope
should be replaced.
It is recommended that the hoist rope inspection program
include reports on the examination of hoist rope removed
from service. The information can be used to establish a
relationship between visual inspection and the rope’s actual
internal condition at the time of removal from service.
Environmental Conditions
The life expectancy of rope may vary due to the degree of
environmental hostility and other conditions to which these
mechanical devices are subjected. Variation in temperature,
continuous excessive moisture levels, exposure to corrosive
chemicals or vapors or subjecting the rope to abrasive
material may shorten normal rope life. Frequent/periodic
inspections and maintenance of rope is recommended for
WARNING
Worn or Damaged Equipment Hazard!
Never use a worn or damaged hoist rope. Death or
serious injury could result from using worn or damaged
hoist rope.
!

Manitowoc National Crane NBT40-1 Series Specifications

General

Brand	Manitowoc
Model	National Crane NBT40-1 Series
Category	Construction Equipment
Language	English