Hitachi ZX200-5G Workshop Manual page 82

Pump Device
Backlash of gears (1, 3, and 9)
Main Pump
1. Spline tooth thickness of shafts (2, 4) (T
Standard
T 5.4 (0.213)
1
2. Oil seal outer diameter (d
Standard
d 45 (1.77)
1
d 55 (2.17)
2
3. Clearance between plunger (5) and shafts (2, 4)
Standard
0.058 (0.002)
4. Clearance between outer diameter (a) of plunger (5)
and inner diameter (D) of rotor (6)
Standard
D-a 0.043 (0.002)
SECTION 2 MAINTENANCE STANDARD
Group 1 Upperstructure
Standard
0.68 (0.027)
)
1
Unit: mm (in)
Allowable Limit
3.8 (0.150)
, d ) of shafts (2, 4)
1 2
Unit: mm (in)
Allowable Limit
44.8 (1.76)
54.8 (2.16)
Unit: mm (in)
Allowable Limit
0.4 (0.016)
Unit: mm (in)
Allowable Limit
0.08 (0.003)
Allowable Limit
1.5 (0.059)
d
2
5
W2-1-1-2
Unit: mm (in)
Remedy
Replace
T
1
4 2
5
6
D
a
d
1
d
2
W157-02-04-015
2, 4
W178-02-11-105
W178-02-11-106