Extending The Side Frame - Hitachi Zaxis 850LC-3 Operator's Manual

EXTENDING THE SIDE FRAME

Required Tools
• Slinging Rope (20 mm dia.×8 m, 6×37 Ordinary Z lay Class
A, Applicable Max. Load: 3 tons)
.....................................................................................................6 Used
* Before slinging, make sure no broken wire strands and/
or kinks exist.
• Lever Block (JIS B8819 equivalent to L3.2T)
.....................................................................................................2 Used
* Check that there is no damage on the lever block.
• Power Boost Wrench (including accessories), width across
flats of the torque wrench: 50 mm
• Air Compressor (slide surface cleaning)
• Soft Protectors
WARNING:
• Group work is required. Before starting work, coor-
dinate work procedures with co-workers.
• Damage to the lever block and/or wire rope may
result along with severe personal injury. When ex-
tending the side fame using the front attachment,
do not allow any personnel to enter the vicinity of
the machine.
WARNING: Do not loosen side frame guide bolts (9).
IMPORTANT: When the machine is shipped from the fac-
tory, all side frame tightening bolts are not
installed. Therefore, unbolted screw holes
on the side frame are coated with rust-inhib-
itor so that they may be clogged with dust or
soil. Before installing the tightening bolts,
clean the thread surface thoroughly. If the
bolts are difficult to tighten, tap the screw
holes again.
Tap: M36, Pitch: 3 mm
IMPORTANT: Before working, completely clean the side
frame slide surfaces using compressed air. If
mud and/or gravel is stuck on the contact ar-
eas of track frame (2) and side frame (3), the
work may be interrupted and loose mount-
ing bolts (1) may result.
1. Remove side frame mounting bolts (1) (8 used, 4 bolts in
two places) from the extending side frame.
2. Rotate the upper structure to the side of the extending
side frame until the front attachment faces the side frame
perpendicularly.
3. Set the arm and boom angle between 90° to 110°. Then,
lower the bucket bottom to the ground.
TRANSPORTING
6-22
1
3
1 9
90 to 110°
2
M162-06-001
M166-01-233