A
B–15768
Check area to be dug for overhead or
underground lines such as electrical, gas, oil,
water, etc. Consult local utilities before
digging. Extreme caution must be used in areas
where lines are present.
W–2116–0788
AVOID INJURY OR DEATH
331/331E/334 Excavator
Operation & Maintenance Manual
23
OPERATING PROCEDURE
Operating On Public Roads
When operating on a public road or highway, always follow
local regulations. For example: A slow moving vehicle
(SMV) sign, or direction signals may be required.
Check with utility companies for underground electrical,
water, gas lines, etc. Work slowly in areas of underground
utilities.
Do not exceed rated operating capacity.
Excessive load can cause tipping or loss of
control.
AVOID INJURY OR DEATH
W–2053–0887
Lifting A Load
Do not exceed the rated load capacity. (See MACHINE
SIGNS & TRANSLATIONS – Lifting Decal, Page 63.)
Extend the bucket cylinder completely and lower the boom
to the ground. Stop the engine.
Wrap the chain assembly around the bucket mounting
plate.
Make sure the load is evenly weighted and centered on the
lifting chain, and is secured to prevent the load from shifting
[A].
Lift and position the load. When the load is in position and
tension is removed from the lift chain (secondary lift
system), remove the secondary lift system.
The optional lifting clamp attachment gives the excavator
a wider range of use and mobility for debris removal [B].
The lifting clamp is operated by the auxiliary hydraulic
system.
The lifting clamp cylinder must be fully retracted when the
machine is being used for excavating.
The lift capacities are reduced by 270 lbs. (122 kg) if the
excavator is equipped with the optional lifting clamp.
B
N–15513
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