MAINTENANCE
7-72
Replace Fuel Pre-filter Element
--- every 500 hours
ZX450LC
-3
, 850LC
-3
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 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.
Procedures:
1. Close fuel cock (5) under the fuel pre-filter.
2. Place a 1-liter (1 US qt) or larger capacity container under
drain plug (1).
3. Loosen air bleed plug (4) and drain plug (1). Drain fuel
until fuel does not flow out of the filter.
4. Remove transparent filter case (8) using an exclusive tool.
5. When transparent filter case (8) is removed, the element
is exposed. Remove the element by hand.
6. Install a new element. Tighten transparent filter case
(8) to 30 ± 2 N•m (3±0.2 kgf•m, 22±1.4 lbf•ft) using the
exclusive tool.
7. Tighten air bleed plug (4) and drain plug (1).
8. Open fuel cock (5) under the fuel pre-filter.
9. Bleed air from the fuel supply system.
After replacing the fuel filter element, bleed air from the
fuel supply system. (Refer to the air bleed procedures
described on page 7-69.)
Wrench size: 14 mm
M1J1-07-047
M1U1-07-004
4
1
8
M1U1-07-005
Fuel Pre-filter
M1J1-07-054
5
4
Summary of Contents for ZAXIS 450LC-3
Page 1: ...Serial No 020001 and up Hydraulic Excavator PART NO EM1J3 NA1 2 450LC 3 650LC 3 850LC 3 ...
Page 2: ... ...
Page 4: ......
Page 45: ...SAFETY SIGNS S 33 SS 862 SS 863 SS 859 1 2 3 ...
Page 46: ...SAFETY SIGNS S 34 SS3106039 SS3092349 SS 408 4 5 6 ...
Page 48: ...SAFETY SIGNS S 36 SS 024 SS 710 SS3089713 10 11 12 ...
Page 136: ...OPERATOR S STATION 1 88 MEMO ...
Page 138: ...BREAK IN 2 MEMO ...
Page 150: ...OPERATING THE ENGINE 3 12 MEMO ...
Page 270: ...TRANSPORTING 6 78 MEMO ...
Page 406: ...MAINTENANCE 7 136 M1J1 07 083 33 Retighten air compressor mounting bolts ...
Page 408: ...MAINTENANCE 7 138 MEMO ...
Page 410: ...MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS 9 MEMO ...
Page 438: ...SPECIFICATIONS 12 14 MEMO ...
Page 470: ...OPTIONAL ATTACHMENTS AND DEVICES 13 32 MEMO ...
Page 474: ...INDEX 14 MEMO ...