Page Issue 01
Chapter - Scheduled Maintenance
7:2
VT551 - Maintenance
INTRODUCTION
REGULAR MAINTENANCE
It is impossible to over emphasise the importance of regular maintenance, inspection and running
adjustments to maintain efficiency and obtain trouble free service from the machine.
Attention is drawn to the recommendation in the Auxiliary Engine Handbook relating to the post delivery
check over.
The maintenance schedule specified are for average operating conditions. Under particularly dry and
dusty conditions, it is essential that more frequent attention is given to:
1
Air cleaner servicing.
2
Engine oil changes.
3
Fluid oil changes.
4
Gearbox oil changes.
5
Hydraulic oil changes.
Attention to the servicing of air cleaners fitted to both auxiliary and vehicle engines is of vital importance
as clean air is essential for the proper functioning and ultimate life of an engine. Badly serviced air
cleaners can allow dust particles to be directly induced into the internal working surfaces with a resulting
rapid increase in engine wear and eventually complete failure. This also applies to any air leaks occurring
between the air cleaner and the engine inlet manifold. See separate instructions for Air Cleaner Servicing.
It is important that the following Safety Precautions are observed when working on the machine.
Ensure the machine is standing on firm, level ground and there are no obstructions above or
to the rear before raising the body.
Ensure the safety prop is used at all times when working under the body.
Ensure operators are fully conversant with the controls and operation.
Isolate the air in the filter regulator unit before working on any pneumatically operated or
controlled equipment.
Disconnect or isolate the vehicle battery when working on the electrical system.
Ensure the auxiliary engine is switched off once the channel brush has been lowered for
adjustment.
Be aware of the safety instructions relative to the suction fan given in the equipment
maintenance notes.
Keep hands, loose clothing, hair etc. well clear of moving parts.
Do not climb on the engine walkways unnecessarily or approach the fan inlet whilst the
engine is running.
Do not grasp any part of the engine or exhaust system without first ascertaining whether it
has cooled sufficiently to avoid scalding.
Do not use ill-fitting tools such as spanners that may slip and cause injury.
Use approved safety platforms/gantries when working above ground level. Get a
second person to check periodically when only one person is working on access
equipment or inside the body.
The use of ‘needle stick gloves’ is recommended when changing brushes, using the
wanderhose/Littasnatch and when cleaning out the machine.
Safety Precautions
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