Hitachi Zaxis 33U-5A, Operator'S Manual

Page: 226 / 340

MAINTENANCE
7-58
Procedures:
1. Park the machine following the same procedures as
described on page 7-7 for preparation for inspection and
maintenance.
2. Close cock (1).
3. Place a 1 liter or larger capacity container under drain
plug (2).
4. Loosen air bleed plug (3) and drain plug (2). Drain fuel
until fuel does not flow out of the filter.
5. Loosen bolt (4) and remove filter case (5).
6. Remove filter element (6).
7. Replace O-ring (7) and packing (8) with new ones.
8. Install a new element. Tighten bolt (4).
Tightening Torque : 30 to 40 N∙m (3.0 to 4.0 kgf∙m, 22 to
29 lbf·ft).
9. Tighten air bleed plug (3) and drain plug (2).
Tightening Torque
Aire Bleed plug (3) : 30 to 40 N∙m (3.0 to 4.0 kgf∙m, 22 to
29 lbf·ft)
Drain plug (2) : 13 to 17 N∙m (1.3 to 1.7 kgf∙m, 10 to
12 lbf·ft)
10. Open cock (1) on the bottom of the fuel tank.
11. Bleed Air from the Fuel System
After replacing the fuel filter element, bleed air from the
fuel supply system.
(Refer to " Bleed Air from Fuel System".)
M1M0-07-041
3
3
5
6
7
4
2
8
M1M0-07-042
1
1
MADC-07-022
ZX33U-5A, 38U-5A, 48U-5A, 55U-5A
MADC-07-015
Fuel Pre-Filter
ZX33U-5A, 38U-5A, 48U-5A, 55U-5A
MADC-07-016
Fuel Pre-Filter
ZX65USB-5A