MAINTENANCE
7-41
D. Hydraulic System
Inspection and Maintenance of Hydraulic Equipment
d
CAUTION: During operation, the parts of the
hydraulic system become very hot.
Allow the machine to cool down before beginning
inspection or maintenance.
1. Park the machine following the same procedures as
described on page 7-6 for preparation of inspection/
maintenance work.
2. Begin servicing hydraulic components only after
components, hydraulic oil and lubricants are
completely cooled, and after releasing residual circuit
pressures.
2.1 Release internal pressure.
2.2 Be sure to relieve the air pressure from the
hydraulic oil tank by pressing air bleed valve (1).
2.3 Allow the machine to cool down.
Note that servicing heated and pressurized
hydraulic components may cause hot parts and/or
oil to fly off or escape suddenly, possibly resulting
in personal injury.
Keep body parts and face away from plugs or
screws when removing them.
Hydraulic components may be pressurized even
when cooled.
Service only on a flat, solid and level surface.
1
115Z7-7-37-1
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 ...