Maintenance Section
-164-
Air Breather - Change
Park the lift truck on level ground, with the forks lowered,
the parking brake engaged, the transmission in
NEUTRAL, and the engine stopped.
1. Raise the hood and seat assembly.
2. Remove and discard the air breather.
3. Install a new air breather.
4. Lower the hood and seat assembly.
Lift Chains - Test, Check, Adjust
Lift Chain Wear Test
Inspect the part of the chain for its normal operation over
the cross head roller. When the chain bends over the
roller, the movement of the parts against each other
causes wears.
Inspect to make sure that chain link pins do not extend
outside of the link hole. If any single link pin is extended
beyond its connecting corresponding link, it should be
suspected of being broken inside of its link hole. Lift
chains are required to check for wear about every 1,000
service hours or 6 months.
Chain wear test is a measurement of wear of the chain
links and pins. Take the following steps to check chain
wear.
1. Lift the mast and carriage enough for getting tension
on lift chains.
Typical example
2. Measure precisely ten links of chain distance at the
center of pins in millimeter.
3. Calculate chain wear rate*.
4. If the chain wear rate is 2% or more, replace the lift
chain.
*Chain wear rate (%)
=
Actual measurement - Pitch** X 10
X 100
Pitch** X 10
**Chain Pitch for D35/40/45S-9, D50C-9,
D35/40/45/50SE-9 = 25.40 mm (1.0 in)
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