Landoll Bendi B40i4, Maintenance Manual

Page: 45 / 142

PLANNED MAINTENANCE
2-19
Figure 2-27: Load Roller Maintenance, Top View
Chain Maintenance
Regular inspection and lubrication of the chains will
increase their service life and reduce downtime. When
you perform chain maintenance, make sure you follow
the guidelines in “Chain Inspection”, “Chain Lubrication”,
“Chain Adjustment”, and “Measuring Chain Stretch”, as
shown in the next several pages.
Chain Inspection
Inspect the chains and check for the following:
1. Chain wear - If one chain appears to be worn replace
both chains of the pair.
2. Rust and corrosion - If chain joints become tight from
rust and corrosion, loosen them with SAE 40W oil or
penetrating oil. If they cannot be loosened, or if the
tight joints are caused by bent pins, plates, or peened
plate edges, replace both chains.
3. Cracked side plates - Replace both chains.
4. Protruding or turned pins - Replace both chains.
5. Side wear - If pins and outside plates show signs of
wear, check for misalignment of sheaves, anchors or
other components. Correct the misalignment. If wear
is excessive, replace both chains.
6. Worn, broken or misaligned chain anchors - Replace
or adjust as required.
Chain Lubrication

CAUTION
Lubricate the chains as listed on the Lubrication Chart
located on page 1-17.
Each pair of chains has been factory-lubricated using
heat and pressure to force the lubricant thoroughly into
the chain links:
1. Avoid removal or contamination of this factory
applied lubricant.
2. DO NOT wash, sand blast, etch, steam clean, or
paint the chains.
Chain Adjustment
The chain must be adjusted so each strand is under
equal tension for proper load distribution and mast
operation.
To determine whether the chains are properly adjusted:
1. Remove load from the forks.
2. Extend the mast to put the chains under tension.
3. Press the center of a strand of chain with your thumb,
then press at the same place on the other chain of
the pair.
4. Each chain in a pair should have equal “give”. If
tension is not equal, adjust them as described in the
manufacturer’s mast service manual.
Measuring Chain Stretch
If the chains have stretched beyond the recommended
amount, they should be replaced in pairs.
Chain stretch can be measured with a Landoll provided
chain wear scale - P/N 162280.
See Figure 2-28.
The scale indicates whether the distance between two
chain links is within tolerance. The shaded area in the
illustration compares a stretched chain, to a new
chain.
Measure the chains according to the instructions printed
on the chain wear scale, without load on the
carriage.
• To check the free lift chains, raise the carriage 1 ft.
(30 cm) off the ground to put tension on the chains.
• To check the main lift chains, raise the mast until the
inner upright starts to extend putting tension on the
chains.
The chains must be coated with a film of lubricant
at all times.