Hyundai 110D-9 Manual page 227

9) CRITICAL FASTENER TORQUE CHECKS
Fasteners in highly loaded (critical) components can quickly fail if they become loosened. Also,
loose fasteners can cause damage or failure of the component. For safety, it is important that the
correct torque be maintained on all critical fasteners of the components that directly support,
handle, or control the load and protect the operator.
Critical items include:
Drive axle mounting
Cabin
Drive and steering wheel mounting
Tilt cylinder mounting and yokes
Counterweight mounting
Mast mounting and components
Refer to page 8-6 for torque specifications.
10) LIFT CHAIN MAINTENANCE
The chain system on the mast was designed for safe, efficient, and reliable transmission of lifting
force from hydraulic cylinder to the forks. Safe use of your truck with minimum down time depends
on the correct care and maintenance of the lift chains. Most complaints of unacceptable chain
performance are a result of poor maintenance. Chains need periodic maintenance to give
maximum service life.
Do not attempt to repair a worn chain. Replace worn or damaged chains with a set (LH & RH).
Do not piece chains together.
(1) Lift chain inspection and measurement
Inspect and lubricate the lift chains every 10 hours or daily and check tension every 250 hours or
monthly. When operating in corrosive environments, inspect the chains every 50 hours. During
the inspection, check for the following conditions:
Rust and corrosion, cracked plates, raised or turned pins, tight joints, wear, and worn pins or
holes.
When the pins or holes become worn, the chain becomes longer. When a section of chain is
3% longer than a section of new chain, the chain is worn and must be discarded.
Chain wear can be masured 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 of both sides on a truck.
(2) Lift chain lubrication
Lift chain lubrication is an important part of your maintenance program. The lift chains operate
under heavy loadings and function more safely and have longer life if they are regularly and
correctly lubricated. HYUNDAI 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.
7-57