Section 7. Planned Maintenance and Lubrication
Planned Maintenance Intervals 7-9
Planned Maintenance Intervals
Time intervals between maintenances are largely determined by
operating conditions. For example, operation in sandy, dusty
locations requires shorter maintenance intervals than operation in
clean warehouses. The indicated intervals are intended for normal
operation. The operating condition classifications are:
Normal Operation
Eight-hour material handling, mostly in buildings or in clean, open air
on clean paved surfaces.
Severe Operation
Prolonged operating hours or constant usage.
Extreme Operation
• In sandy or dusty locations, such as cement plants, lumber
mills, and coal dust or stone crushing sites.
• High-temperature locations, such as steel mills and found-
ries.
• Sudden temperature changes, such as constant trips from
buildings into the open air, or in refrigeration plants.
If the lift truck is used in severe or extreme operating conditions, you
must shorten the maintenance intervals accordingly.
Since the operating environment of lift trucks varies
widely, the above descriptions are highly generalized and
should be applied as actual conditions dictate.
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