STRUCTURE AND FUNCTION
CYLINDERS
PC14R-3 Unit: mm No.
1
2
3
Check item Cylinder name
Standard size
Boom
ø30
Shaft
Hole
Standard clearance
Clearance limit
+0.033 +0.080 +0.133 –0.007 +0.133 –0.007 +0.133 –0.007 +0.132 +0.006
0.020 – 0.086 0.013 – 0.186 0.013 – 0.186 0.013 – 0.186 0.031– 0.196
0.403
0.496
Blade
ø35
Variable gauge
ø30
–0.020 –0.053
+0.133 –0.007
0.013 – 0.186
0.486
Boom
ø35 ø30
Bucket
ø30 ø30
Blade
ø35
0.097 – 0.198 0.051 – 0.114 0.130 – 0.229 0.046 – 0.161 0.082 – 0.184
1.0
Boom swing
+0.134 +0.072 +0.099 +0.040 +0.099 +0.040 +0.111 +0.036 +0.134 +0.072
1.0
Arm
–0.025 –0.064 –0.011 –0.015 –0.090 –0.130 –0.010 –0.050 –0.010 –0.050
Variable gauge
ø30
–0.010 –0.050
+0.111 +0.036
0.046 – 0.161
1.0
Boom
ø35 ø30
ø35
+0.134 +0.072 +0.099 +0.040 +0.099 +0.040 +0.111 +0.036 +0.134 +0.072
0.097 – 0.198 0.065 – 0.163 0.130 – 0.229 0.046 – 0.161 0.082 – 0.184
1.0
Arm
–0.025 –0.064 –0.025 –0.064 –0.090 –0.130 –0.010 –0.050 –0.010 –0.050
1.0
ø30
–0.010 –0.050
+0.111 +0.036
0.046 – 0.161
1.0
Clearance Bucket between cylinder bottom supporting shaft Boom swing and bushing Blade Variable gauge
PC14R-3 PC16R-3
Tolerance –0.020 –0.053 –0.020 –0.053 –0.020 –0.053 –0.020 –0.053 –0.025 –0.064
Arm Clearance between piston Bucket rod and bushing Boom swing
Clearance between piston rod supporting shaft and bushing
Remedy
Value
ø30 ø30 ø30
ø30 ø30
0.486 0.486
Replace bushing
0.486
1.0
1.0 1.0
Replace pin and bushing
1.0 1.0 1.0
10-59
