hitachi — SELECT CORRECT TRACK SHOES

OPERATING THE MACHINE OPERATING TIPS Do not hit the track with the bucket when digging. Whenever possible, position your machine on a level surface. Do not use the bucket as a hammer or pile driver. Do not at- tempt to shift rocks and break walls using swing motion. WRONG IMPORTANT: To avoid damaging cylinders, do not strike the ground with the bucket nor use the bucket for tamping with the bucket cylinder fully extended (the bucket completely curled under). Adjust the length and depth of each cut to produce a full bucket with 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. M104-05-019 IMPORTANT: Do not 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 dam- age to the machine can result. M161-05-006 Once the trench is open, ledge rock can be broken by pulling the bucket up under the layers. The top layers are pulled out first, with one or two layers being lifted at a time. Do not side load the bucket. For example, do not swing the bucket to level material or do not strike objects from the side with the bucket. SELECT CORRECT TRACK SHOES IMPORTANT:

Using wide track shoes on rough ground may result in shoe bending and/or loosen- ing, and may damage other undercarriage components. Never use wide track shoes on rough ground such as rocks, sand or gravel. Wide track shoes are designed for soft ground. Track shoe bolts should be checked periodically for tightness. 5-17