45-2
Servicing Vee Belts
1. The Vee belt drive is a highly ecient
power transmission medium, but optimum
performance will not be achieved without
correct tensioning and alignment.
2. Vee belt drives are used on the plant between
the engine and the crusher and also to drive the
hydraulic pumps on some plants.
3. Drive belts should be inspected regularly for
wear and also to monitor any pattern in the
wear if it is occurring.
4. Insucient belt tension will cause slippage
leading to loss of drive eciency, heat
generation and belt failure.
5. Over tensioning will exert excessive loading on
the shaft bearings and can lead to premature
failure.
6. When replacing a multi-belt drive always use a
set of ‘matched’ new belts so that equal force
can be applied to all the belts.
7. Ensure that any ventilation provided in the drive
guarding is kept clear to avoid overheating.
8. Do not allow contaminating material to come into
contact with the drive elements.
n WARNING
Do not inspect or carry out work on belt
drives before closing down the plant and
implementing the Lockout Procedure.
Never operate the plant without eective
drive guarding in place.
ENTANGLEMENT
HAZARD
n DANGER
Refer to Safety Notices Section for relevant
warning and procedure
n WARNING
Refer to Safety Notices Section for relevant
warning and procedure
LOCKOUT
PLANT
General
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