Komatsu 830E-AC Shop Manual page 55

A warning plate is attached to the hydraulic tank to
inform technicians that high pressure hydraulic oil is
present during operation. When it is necessary to
open the hydraulic system, Ensure the engine is
stopped and key switch is OFF to bleed down
hydraulic pressure. There is always a chance of
residual pressure being present. Open fittings slowly
to allow all pressure to bleed off before removing any
connections.
Any operating fluid, such as hydraulic oil, escap-
ing under pressure can have sufficient force to
enter a person's body by penetrating the skin.
Serious injury and possibly death may result if
proper medical treatment by a physician familiar
with this injury is not received immediately.
A wheel motor oil level decal is attached to the gear
cover on both electric wheel motors. This decal
stresses the fact that the truck must be on a level
surface and parked for 20 minutes prior to checking
the oil level. This is necessary in order to get an
accurate reading.
A decal plate located on the frame near the left hoist
cylinder provides the operator or technician with the
hook-up procedure for dumping a loaded, disabled
truck. The use of a functional truck for hydraulic
power is required.
Refer to the Section L for additional instructions for
using this procedure.
Warning decals are applied to both brake accumula-
tors located inside the brake system cabinet behind
the operator cab. These decals remind servicing
technicians to close the accumulator drain valves
after they have been opened to bleed brake pres-
sure. It further warns not to over-tighten the drain
valves to prevent damage to the valve seat(s).
A04059 Warnings and Cautions A4-5