Hitachi EX20UR-2 Manual page 248

D E
UNDERCARRIAGE / Upper and Lower Roller
c
Lower Roller
W503-03-06-001
Unit: mm (in.)
Key Letter
Standard Dimensions Allowable Limit Corrective Measure
A
31 (1.22°) 23 (0.91°)
Overlaying and
Hand Finishing
B 112 (4.41")
—
C
34 (1.34')
—
D
85 (3.35') 77 (3.03')
E
107 (4.219) —
Axle and Bushing
Unit: mm (in.)
Part Name Standard Dimensions
Allowable Limit Corrective Measure
Axle Outer Diameter
30.0 (1.18°) 29.2 (1.15°)
Replace
Bushing
Inner Diameter 30.0 (1.18') 30.5 (1.20')
Flange Thickness 2.0 (0.08') 1.5 (0.06')
W03-06-06