Komatsu 930E-2 Shop Manual page 48

The Wheel Brake Lock switch is for holding
the truck while parked at the shovel during
loading, or while dumping. It applies the rear
service brakes only. If the brake treadle valve does
not operate, apply this brake to stop the truck. Do NOT
use this brake as a parking brake when leaving the
truck. With engine shut down, the hydraulic system will
eventually bleed down, releasing the service brakes.
Attached to the exterior of both battery compartments
is a danger plate. This plate stresses the need to keep
from making any sparks near the battery. When an-
other battery or 24VDC power source is used for
auxiliary power, all switches must be "Off" prior to
making any connections. When connecting auxiliary
power cables, positively maintain correct polarity; con-
nect the positive (+) posts together and then connect
the negative (-) lead of the auxiliary power cable to a
good frame ground. Do not connect to the negative
posts of the truck battery or near the battery box.
This hookup completes the circuit but minimizes dan-
ger of sparks near the batteries.
Sulfuric acid is corrosive and toxic. Use proper safety
gear, goggles, rubber gloves and rubber apron when
handling and servicing batteries. Get proper medical
help immediately, if required.
This plate is placed on both battery boxes and near the
battery disconnect switches to indicate that the battery
system (24VDC) is a NEGATIVE (-) GROUND system.
A4-2
These decals are placed above the battery disconnect
switches on the right side of the front bumper to
indicate "Off" and "On" positions of the switches.
A warning plate is mounted on top of the radiator surge
tank cover near the radiator cap.
The engine cooling system is pressurized. Always
turn the key switch off and allow the engine to cool
before removing radiator cap. Unless the pressure
is first released, removing the radiator cap after the
engine has been running for a time will result in the hot
coolant being expelled from the radiator.
Serious scalding and burning can result.
Warning plates are mounted on the frame in front of,
and to the rear, of both front tires. All personnel are
warned that the clearances change when the truck is
steered and could cause serious injury.
Warnings and Cautions A04039