Replace Fuel Main Filter Element - Hitachi ZAXIS 30U-5N Operator's Manual

Hydraulic excavator
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Replace Fuel Main Filter Element

--- every 500 hours
IMPORTANT:
 Be sure to use only genuine Hitachi elements for
the fuel main filter element. Failure to do so may
deteriorate the engine performance and/or shorten
the engine service life. Please be noted that all
engine failures caused by using other manufacturers'
elements are excluded from Hitachi Warranty Policy.
 Take care not to allow dirt and/or water to enter the
fuel tank.
Procedures:
1. Park the machine following the same procedures as
described on page 7-6 for preparation for inspection and
maintenance.
2. Close cock (1).
3. Place a 1 liter or larger capacity container under fuel
main filter (2).
4. Remove fuel filter (2) using the filter wrench.
5. Clean the fuel filter (2) contact area.
6. Apply a thin layer of clean fuel to the gasket of new fuel
filter (2).
7. Turn fuel filter (2) clockwise by hand until fuel filter (2)
touches the contact area.
8. Tighten fuel filter (2) 1/2 turn more using the filter
wrench. Be careful not to overtighten.
Tightening Torque : 20 to 24 N·m (2.0 to 2.4 kgf·m, 15 to
9. Open cock (1).
10. Bleed Air from the Fuel System
After replacing the fuel filter element, bleed air from the
fuel supply system.
(Refer to "
Bleed Air from the Fuel System".)
MAINTENANCE
17 lbf·ft)
1
2
7-58
ZX30U-5N, 35U-5N
ZX30U-5N, 35U-5N
1
ZX50U-5N, 60USB-5N
2
ZX50U-5N, 60USB-5N
MADB-07-022
MADB-07-011
MADG-07-010
MADG-07-009

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