Swing Internal Gear - Hitachi ZAXIS 135US-6 class Operator's Manual

Hydraulic excavator

Table of Contents

Swing Internal Gear

--- every 500 hours

CAUTION: Before lubricating the machine, lower the

bucket on the ground, stop the engine and pull the

pilot control shut-off lever to the LOCK position.

1. Remove cover (1) from upperstructure. Check if the

swing internal gear is properly lubricated by grease.

2. Please insert the scale (2) and check that the height (H)

of the grease amount of the swing internal gear is higher

than the reference value.

Depending on the model, the height may be different

depending on the inserted position. Please change the

inserting position when the height is greatly different.

3. If it is insufficient, replenish the grease, pay attention to

the O-ring of the cover (1), install it downward, and then

start the engine. Please check the height (H) of grease

amount again after swinging a few times.

Grease Height (H)