10
MAINTENANCE
The maintenance of an engine and related com-
ponents are critical to its operating performance
and lifespan. Industrial engines operate in envi-
ronments that often include hot and cold
temperatures and extreme dust. The recom-
mended maintenance schedule is listed in this
section, however, environmental operating condi-
tions and additional installed equipment may
require more frequent inspection and servicing.
The owner and/or service agent should review the
operating conditions of the equipment to deter-
mine the inspection and maintenance intervals.
When performing maintenance on the engine,
turn the ignition OFF and disconnect the bat-
tery negative cable to avoid injury or damage
to the engine.
ENGINE BELTS
The engine installed in this equipment uses a ser-
pentine drive belt configuration that drives the
water pump, alternator and additional pumps or
devices. It is important to note that the drive belt
is an integral part of the cooling and charging sys-
tem and should be inspected according to the
maintenance schedule in this section. When in-
specting the belts check for:
Cracks
Chunking of the belt
Splits
Material hanging loose from the belt
Glazing, hardening
If any of these conditions exist the belt should be
replaced with the recommended OEM replace-
ment belt.
Alcohol or Methanol based anti-freeze or
plain water are not recommended for use in
the cooling system at anytime.
SERPENTINE BELT SYSTEM
Serpentine belts utilize a spring-loaded tensioner
to keep the belt properly adjusted. Serpentine
belts should be checked according to the main-
tenance schedule in this section.
IMPORTANT:
The use of “belt dressing” or “anti-slipping
agents” on belts is not recommended.
COOLING SYSTEM
It is important that the cooling system of the en-
gine be maintained properly to ensure proper
performance and longevity.
Alcohol or Methanol based anti-freeze or
plain water are not recommended for use
in the cooling system at anytime.
Do not remove the cooling system pres-
sure cap (radiator cap) when the engine is
hot. Allow the engine to cool and then
remove the cap slowly to allow pressure
to vent. Hot coolant under pressure may
discharge violently.
NOTE that the LPG vaporizer is connected to the
cooling system and the fuel system may be ad-
versely affected by low coolant levels and
restricted or plugged radiator cores. Therefore,
the cooling system must be maintained according
to the recommend maintenance schedule in this
section and also include:
The regular removal of dust, dirt and debris
from the radiator core and fan shroud.
Inspection of coolant hoses and components
for leaks, especially at the radiator hose con-
nections. Tighten hose clamps if necessary.
Check radiator hoses for swelling, separation,
hardening, cracks or any type of deterioration.
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