CYLINDER
PC20R-8
Boom:
Arm:
Bucket:
Boom swing: 539w54 Nm
Blade:
2
No.
Check item
Clearance
between
1
piston rod and
cylinder
Clearance
between
2
cylinder head
bushing and pin
Clearance
between
3
cylinder bottom
bushing and pin
40-28
490w49 Nm
490w49 Nm
412w41 Nm
490w49 Nm
1
Stan-
Cylinder
dard size
Boom
40
Arm
40
Bucket
35
Boom swing
40
Blade
35
Boom
35
Arm
35
Bucket
30
Boom swing
40
Blade
35
Boom
35
Arm
35
Bucket
30
Boom swing
40
Blade
35
M The figure represent arm cylinder
Boom:
618w62 Nm (Wrench size: 41 mm)
Arm:
785w78 Nm (Wrench size: 46 mm)
Bucket:
412w41 Nm (Wrench size: 36 mm)
Boom swing: 539w54 Nm (Wrench size: 46 mm)
Blade:
618w62 Nm (Wrench size: 41 mm)
Criteria
Tolerance
Standard
clearance
Shaft
Hole
± 0.025
+ 0.039
0.025 ±
± 0.087
0
± 0.025
+ 0.039
0.025 ±
± 0.087
0
± 0.025
+ 0.039
0.025 ±
± 0.087
0
± 0.025
+ 0.039
0.025 ±
± 0.087
0
± 0.025
+ 0.039
0.025 ±
± 0.087
0
± 0.090
+ 0.142
0.170 ±
± 0.130
+ 0.080
± 0.090
+ 0.142
0.170 ±
± 0.130
+ 0.080
± 0.090
+ 0.117
0.170 ±
± 0.130
+ 0.080
± 0.010
+ 0.134
0.082 ±
± 0.050
+ 0.072
± 0.090
+ 0.142
0.170 ±
± 0.130
+ 0.080
± 0.090
+ 0.142
0.170 ±
± 0.130
+ 0.080
± 0.090
+ 0.142
0.170 ±
± 0.130
+ 0.080
± 0.090
+ 0.117
0.170 ±
± 0.130
+ 0.080
± 0.010
+ 0.134
0.082 ±
± 0.050
+ 0.072
± 0.090
+ 0.142
0.170 ±
± 0.130
+ 0.080
Loctite 262
RKP01480
Limit
clearance
0.426
0.126
0.426
0.126
Replace
cylinder head
0.426
0.126
0.426
0.126
0.426
0.126
1.0
0.272
1.0
0.272
1.0
0.247
1.0
0.184
1.0
0.272
Replace
bushing
1.0
0.272
1.0
0.272
1.0
0.247
1.0
0.184
1.0
0.272
PC20R-8 PC27R-8
3
Unit: mm
Remedy