Clark ECX 20, Operator'S Manual

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Lift truck Maintenance 8-13
Section 8. Planned Maintenance
• Chain wear can be measured by using a chain scale or a
steel tape measure. When checking chain wear, be sure to
measure a segment of chain that moves over a sheave. Do
not repair chains by cutting out the worn section and joining
in a new piece. If part of a chain is worn, replace all the
chains on a truck.
Lift Chain Lubrication
• Lift chain lubrication is an important part of your mainte-
nance program. The lift chains operate under heavy load-
ings and function more safely and have longer life if they are
regularly and correctly lubricated. CLARK chain lubricant is
recommended; it is easily sprayed on and provides superior
lubrication. Heavy motor oil may also be used as a lubricant
and corrosion inhibitor.
Lift Chain Wear and Replacement Criteria:
1. (NEW CHAIN LENGTH) The
distance from the first pin
counted to the last pin counted
in a span while the chains are
lifting a small load.
2. (WORN CHAIN LENGTH) The
distance from the first pin
counted to the last pin counted
in a span while the chains are
lifting a small load.
3. (SPAN) The number of pins in the length (segment) of chain to
be measured.
4. (PITCH) The distance from the center of one pin to the center of
the next pin.
All chains must be replaced if any link has wear of 3% or more, or if
any of the damaged conditions noted above are found during
inspection. Order replacement chains from your CLARK dealer.
Replace all chains as a set. Do not remove factory lubrication or
paint new chains. Replace anchor pins and worn or broken anchors
when installing new chains. Adjust tension on new chains. Lubricate
chains when they are installed on the upright.
NOTICE
Please refer to your Service Manual for additional infor-
mation on lift chain measurement and maintenance.
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