Engine Start-Up Safety Practices - Komatsu 530M Operation & Maintenance Manual

Operation - Section 3
Page 3-4
29. Check air cleaner indicator. If the RED area is
showing in the indicator, the air filter must be
cleaned/replaced before operating truck.
30. Clean cab windows and mirrors; clean out cab
floor as necessary. Insure steering wheel, controls
and pedals are free of any oil, grease or mud.
31. Stow personal gear in cab so that it does not
interfere with any operation of the truck. Dirt or
trash buildup, specifically in the operator's cab,
should be cleared. Do not carry tools or supplies
in cab of truck or on the deck.
32. Adjust seat and steering wheel so that it is com-
fortable for use.
33. Read and understand the OPERATOR CON-
TROLS AND INSTRUMENT PANEL discussion in
this section.
Be familiar with all control locations and functions
BEFORE operating truck.

ENGINE START-UP SAFETY PRACTICES

Safety rules must be observed upon engine start-up.
Insure adequate ventilation before start-up, if the
truck is in an enclosure. Exhaust fumes are danger-
ous!
1. Insure all personnel are clear of truck before
starting engine. Always sound the horn as a warn-
ing before actuating any operational controls.
2. Check and insure Transmission Range Selector is
in ''Neutral'' before starting.
3. Do not attempt to start engine while cold weather
starting heater (if equipped) is in operation. Dam-
age to coolant heaters will result, due to lack of
circulation.
4. The key switch is a three position (Off, Run, Start)
switch.
When the key slot is in the vertical
position, the electrical system is
''Off'' and no electrical devices are
energized.
Use this key position to stop the en-
gine when it is running.
When the switch is rotated one position clock-
wise, it is in the ''Run'' position and all electrical
circuits (except ''Start'') are energized.
With Transmission Selector Lever
in the ''Neutral'' position, rotate
key switch fully clockwise to
''start'' position (Transmission
Range Selector in ''Neutral'') and
hold this position until engine
starts (see NOTE below). ''Start''
position is spring loaded to return
to ''run'' when key is released.
NOTE: The starter is equipped with an Engine
Prelube System; a noticeable time delay will oc-
cur (while engine lube oil passages are being
filled) before starter engagement and engine
cranking will begin. The colder the engine oil
temperature, the longer the time delay will be. In
addition, if truck is also equipped with Engine
Starting Aid for cold weather starting, the Engine
Prelube System should be engaged FIRST for
5-10 seconds, or until starter is engaged, BE-
FORE activating the Engine Starting Aid .
Starting fluid is extremely volatile and flammable!
Use with extreme care.
If truck is equipped with Engine Starting Aid for
cold weather starting, and ambient temperature is
below -5°C (23°F), push the Engine Starting Aid
switch ''in'' for three seconds; then release. Turn
the key switch to the ''start'' position. If engine
does not start, wait at least 15 sec. before repeat-
ing the procedure.
Do not crank an electric starter for more than 30
seconds. Allow two minutes for starter motor
cooling before attempting to start engine again.
Severe damage to starter motor can result from
overheating.
5. The truck cannot be push started. Transmission
lube and control systems are inoperative when
engine is not running.
6. When getting a battery assist from one truck to
another, all switches must be ''Off'' prior to making
any connections. Be certain to maintain correct
polarity. Connect one lead of booster cable to 24V
positive (+ ) post of battery needing assist, and
other lead of the booster cable to the 24V positive
(+ ) post of auxiliary battery. Connect one lead of
second booster cable to 24V negative (-) post of
auxiliary battery and then connect other lead of
the booster cable to a good frame ground on the
disabled truck away from the battery needing
assist. This procedure will avoid the possibility of
causing sparks near the battery where explosive
gases may be present.
OM3006.1 04/98
Operating Instructions