National Crane Published 12-21-2011 CTRL #050-09 6-1
1300A OPERATOR’S MANUAL MAINTENANCE CHECKLIST
SECTION 6
MAINTENANCE CHECKLIST
CRANE INSPECTION AND MAINTENANCE
Regularly scheduled inspections and maintenance is
essential to keep your unit in peak operating efficiency. The
following pages outline the inspections and maintenance
required to keep the crane in proper operating condition.
Inspection
The following pages list inspections which are to be
conducted on your unit to help assure its operating properly
and safely. Use applicable torque table requirements for
missing or loose fasteners.
The inspections are separated into the following frequency
classifications:
• Daily inspections - are performed by the operator before
beginning the days work.
• Weekly inspections - are performed by the operator
weekly.
• Monthly inspections - are performed by maintenance
personnel monthly.
• Periodic inspections - are performed by maintenance
personnel at least every three months and includes all
items listed under daily, weekly, and monthly
inspections. Federal Laws through OSHA and ANSI
B30.5 require that dated and signed records of these
periodic inspections be kept. An inspection log book is
available from National Crane to assist you in keeping
records.
Daily Inspections
Check the following items:
1. Engine oil level.
2. Hydraulic oil level.
3. Radiator coolant level.
4. Loose parts or damage to structures or welds.
5. Operation of lights, safety equipment and gauges.
6. Condition of tires and suspension.
7. Condition of hoist cable and end attachment for
corrosion, severe kinking, crushing, cutting, or slippage
of cable clamps or wedge socket.
8. Loose parts or damage to cable centering hook blocks.
9. Position of cable with guides and on sheaves.
10. Free turning of sheaves.
11. Lubrication as specified by the Lubrication Chart.
12. Evidence of oil leak from hoses, gearboxes, or swivel.
13. Hand and foot controls for malfunction or incorrect
adjustment.
14. Truck parking brake operation.
15. Boom proportioning to insure that all boom sections
extend and retract equally.
16. All securing hardware such as cotter pins, snap rings,
hairpins, pin keepers, and capscrews for proper
installations.
17. Proper condition and operation of LMI and anti-two-
block systems to include the anti-two-block switch
weight and chain at the boom tip (and jib tip if equipped),
power cords, audible alarms, and indicator lights on the
console.
18. Proper operation of the load hook safety latch.
19. Drain holes at rear of the first section of the boom are
clear of all obstructions.
20. All fasteners retaining the cable centering block are in
place and tight.
21. All safety covers for proper installation.
Weekly Inspections
Check the following items:
1. Battery water level.
2. Tire pressure.
3. Lubrication as specified by the Lubrication Chart.
4. Boom lift and outrigger holding valves for proper
operation.
5. Torque the swing bearing mounting bolts during the first
month of operation and periodic inspections thereafter
(See page 6-11 for Torque Values).
6. Hoist brake for proper operation at hoist capacity load.
7. Torque the boom wear pad retaining bolts during first
month of operation, and monthly thereafter.
DANGER
Do not, under any circumstances, work at an elevated
height without using proper fall protection as required by
local, state or federal regulations
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