12
4
Cylinders
Disassembly anD assembly
4l0aX00
CylinDers
3. install the piston on the piston rod.
<Only for boom cylinder (a to d)>
a. Place the cushion seal (7) in the groove with the
seal’s slitted portion facing the thread side.
b. Install the cushion bearing (6) with its worked sur
-
face portion facing the correct side as shown in the
figure.
c. Install the stopper (5) in the groove.
d. Push the cushion bearing (6) fully to the stopper
side, and then install the snap ring.
e. Install the piston (3) and tighten it.
f. Insert the ball (2), tighten the set screw (1) and caulk
at two points with a punch.
Piston, setscrew
Cylinder assembly
1. secure the tube in a level position, and insert the piston
rod assembly into the tube.
• When inserting, align the center of the piston rod
with the center of the tube. insert the assembly
straight so as not to damage the seal.
2. Tighten the rod cover.
rod cover
/$)=
$
Cylinders
Piston
(N·m)
set screw
(N·m)
boom
479 (353 ft-lb.)
6.8 (5.0 ft-lb.)
arm
479 (353 ft-lb.)
6.8 (5.0 ft-lb.)
bucket
245 (180 ft-lb.)
6.8 (5.0 ft-lb.)
blade
365 (269 ft-lb.)
6.8 (5.0 ft-lb.)
swing
479 (353 ft-lb.)
6.8 (5.0 ft-lb.)
4LAA35Z
4LAA36Z
Cylinders
rod cover
(N·m)
boom
304 (224 ft-lb.)
arm
304 (224 ft-lb.)
bucket
255 (188 ft-lb.)
blade
304 (224 ft-lb.)
swing
304 (224 ft-lb.)
Summary of Contents for TB215R
Page 1: ...CC8E005 WETB215R_A XI Seral No 215000003...
Page 3: ...SAFETY 1...
Page 13: ...SERVICE DATA 2...
Page 16: ...SERVICE DATA DIMENSIONAL DRAWING 3 2 DIMENSIONAL DRAWING 2A0AX001 Operating range 2A0AX02...
Page 53: ...SERVICE DATA WIRE HARNESS DIAGRAM 2 2 WIRE HARNESS DIAGRAM 2H0AX00 Body harness 03342 68000...
Page 54: ...SERVICE DATA WIRE HARNESS DIAGRAM 3 2 WIRE HARNESS DIAGRAM 2H0AX00...
Page 55: ...SERVICE DATA WIRE HARNESS DIAGRAM 4 2 WIRE HARNESS DIAGRAM 2H0AX00...
Page 56: ...SERVICE DATA WIRE HARNESS DIAGRAM 5 2 WIRE HARNESS DIAGRAM 2H0AX00...
Page 57: ...SERVICE DATA WIRE HARNESS DIAGRAM 6 2 WIRE HARNESS DIAGRAM 2H0AX00...
Page 58: ...FUNCTION 3...
Page 88: ...DISASSEMBLY AND ASSEMBLY 4...
Page 125: ...DISASSEMBLY AND ASSEMBLY OPERATING DEVICE 6 4 OPERATING DEVICE 4F0AX00 Hydraulic piping...
Page 230: ......
Page 232: ...TROUBLESHOOTING 5...
Page 287: ...Other 6...