Connecting Arm Cylinder Rod - Hitachi Zaxis 850LC-3 Operator's Manual

CONNECTING ARM CYLINDER ROD

1. To prevent seals from damage, bleed the air from the arm
cylinder according to the following procedures.
(1) Start the engine and run it at slow speed.
(2) Sling arm cylinder (2) with a crane. Slowly extend
and retract rod (1).
(3) Repeat operation in step 2 until cylinder rod (1)
moves smoothly.
2. Align rod-pin bore (3) of the arm cylinder (2) with pin (4)
on the arm by moving the arm cylinder (2) up and down
while extending or retracting the cylinder rod.
WARNING:
• When aligning the centers of the pin and pin hole,
never put fingers into the pin hole.
• When using a hammer, wear safety equipment
such as safety glasses or a hard hat to protect
against injury from flying pieces of metal.
• When inserting the pin, never enter into the area
under the arm cylinder.
3. After driving the pin into the pin holes, install pin lock
plate (5) with bolts (6).
Tightening torque: 400 N•m (40 kgf•m, 290 lbf•ft)
4. When connecting the arm-cylinder-rod greasing hose
to the arm cylinder rod, install adaptor (7) with angle (A)
of 10 to 30° so that the hose does not come into contact
with the arm cylinder mounting bracket.
ASSEMBLING
6
7
6-12
4 3
5
1
M167-07-017
2
M1J1-06-022
M1J1-06-020
A
M1J1-06-023