MAINTENANCE
7-64
Replace Fuel Pre-Filter Element
---every 500 hours or when fuel filter restriction
indicator is lit
IMPORTANT:
Be sure to use only genuine Hitachi elements for
the fuel main filter element and the pre-filter
element. Failure to do so may lower engine
performance and/or shorten the engine service
life.
Do not allow dirt and/or water to enter the fuel
system.
Never pre-fill the filters.
Procedures:
1. Connect transparent drain hose (6) stored in the tool
box to drain (5).
2. Place 1 liter (1 quart) or larger capacity container
under drain hose (6) to hold the drained water.
3. Loosen air bleed plug (7) and drain (5). Drain fuel
until the filter is empty.
After draining fuel, remove drain (5) and replace the
gasket at drain (5).
4. Remove transparent filter case (11) using the
provided filter wrench.
5. When transparent filter case (11) is removed, the
element and O-ring for transparent filter case (11) is
exposed. Remove the element by hand.
IMPORTANT:
When cleaning transparent filter case (11), use
clean diesel oil. DO NOT use acid or alcohols
solvent such as parts cleaning detergent, oil with
gas dryer, etc. These organic material may cause
cracks or cloud on the resin case.
Do not overtighten the filter case.
6. Install a new element. Replace transparent filter case
O-ring and tighten transparent filter case (11) using
the special tool.
m
: 30 ± 2 N·m (3±0.2 kgf·m, 22±1.5 lbf·ft)
Wrench size: 14 mm (0.55 in)
Fuel Pre-Filter
115Z7B-7-59-1
4
115Z7B-7-59-2
7
11
5
6
95Z7-7-59-2
Summary of Contents for ZW 550-6
Page 4: ......
Page 10: ...CONTENTS SPECIFICATIONS 12 1 Specifications 12 1 Intended Use 12 1 INDEX 14 1 ...
Page 12: ...MACHINE NUMBERS 2 Aftertreatment Device SCR TYPE MFG NO DOC TYPE MFG NO 95Z7B SCR4 95Z7B SCR4 ...
Page 54: ...SAFETY LABELS S 42 2 25 7 4 1 26 1 8 9 5 6 11 12 10 24 115Z7B S 42US ...
Page 148: ...OPERATOR S STATION 1 84 MEMO ...
Page 208: ...OPERATOR S STATION 1 144 MEMO ...
Page 210: ...BREAK IN 2 2 MEMO ...
Page 226: ...OPERATING THE ENGINE 3 16 MEMO ...
Page 274: ...OPERATING THE MACHINE 5 28 MEMO ...
Page 354: ...MAINTENANCE 7 70 MEMO ...
Page 418: ...9 4 MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS MEMO ...
Page 422: ...10 4 STORAGE MEMO ...
Page 428: ...11 6 TROUBLESHOOTING MEMO ...
Page 430: ...SPECIFICATIONS 12 2 MEMO ...
Page 438: ...INDEX 14 8 ZW550 6 US MEMO ...