Introduction
A regular program of periodic preventive maintenance is essential to prolong crane
operating life, maximize efficient service and minimize downtime. This section details a
series of checks and procedures which are to be performed at daily, weekly, monthly and
semi annual intervals. These intervals are stated both in terms of calendar periods and
hours of operation.
The checks prescribed for longer intervals include all the checks required for the shorter
intervals. Thus, the weekly check includes all items in the daily check, the monthly check
includes weekly and daily checks, and so on through the semi-annual check, which
includes the quarterly, monthly, weekly and daily checks.
A convenient check chart provides a means of recording preventive maintenance
performed and serves as a tool detecting problem areas and reanalyzing maintenance
requirements. The items in each check interval on the check chart are grouped under their
respective headings and covered in detail over the course of Section 6.
This maintenance schedule is a guide which ensures that basic preventive maintenance
requirements will be met under average operating conditions. Conditions which impose
greater wear, loads or strain on the crane may dictate reduced check intervals. Before
altering the maintenance schedule, reevaluate crane operation and review the crane
maintenance records. Consider all factors involved and develop a revised schedule
adequate to meet routine maintenance requirements.
As a part of each periodic check, refer to the engine manufacturer’s manual for engine
maintenance requirements. When servicing the engine, the engine manufacturer’s
recommendations take precedence over those in this manual, should any discrepancy be
noted.
OPERATOR OBSERVATION
As the operator, it is your responsibility to observe and report any unusual sounds, odors,
or other signs of abnormal performance that could indicate trouble ahead. On a routine
basis the following items should be checked before starting or while operating the crane.
Visual Inspection - Check complete machine for any unusual condition.
Check for any leaks or damage to the hydraulic system.
Check in the engine compartment:
•
Belts for tension and wear
• Coolant level
• Oil level
• Transmission oil level
• Air cleaner sight gauge
• Air intake
Troubleshooting
383P/N 12261-683 REVISED: January 2015
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