Select Correct Track Shoes; Operating Tips - Hitachi EX27U Operator's Manual

SELECT CORRECT TRACK SHOES

Rubber and marsh shoes are only for use on soft ground,
not on hard, abrasive surfaces such as gravels, rocks, min-
erals, etc.
Using these shoes on such surfaces can cause shoes to
be damaged or warped, and further cause damage to the
track link and/or rollers.

OPERATING TIPS

Don't hit track with bucket when digging.
Whenever possible, position your machine on a level sur-
face.
Don't use the bucket as a hammer or pile driver. Do not
attempt to shift rocks and break walls using swing motion.
IMPORTANT: Don't strike the ground with the bucket
or use the bucket for tamping with the
bucket cylinder fully extended (the
bucket completely curled under) to
avoid damaging cylinders.
Adjust the length and depth of each cut to produce a full
bucket at every pass.
Full loads on every pass is more productive than a faster
cycle with a partially filled bucket.
Full load should be the first objective, followed by speed, to
increase productivity.
IMPORTANT: Don't attempt to break ledge rock by ex-
tending the arm to maximum reach and
dropping the front of the bucket on the
bucket teeth for penetration. Serious
damage to the machine can result.
Once the trench is open, ledge rock can be broken by pull-
ing the bucket up under the layers. The top layers are
pulled out first, with one or two layers being lifted at a time.
Don't sideload bucket. For example, do not swing bucket to
level material or do not strike objects from the side with the
bucket.
OPERATING THE MACHINE
5-15
WRONG
M586-05-015