Operation Manual

SERVICING
CONTENTS
1. GENERAL .......................................................................................................9-51
[1] BACKHOE IDENTIFICATION ..................................................................9-51
[2] GENERAL PRECAUTION .......................................................................9-51
[3] LUBRiCANTS ...........................................................................................9-52
[4] MAINTENANCE CHECK LlST ................................................................ 9-S2
[5] CHECK AND MAINTENANCE ................................................................ 9-S2
(1) Check Points
of Each Use or Daily .....................................................9-52
(2) Check Points of Every 10 Hours .........................................................9-53
2. TROUBLESHOOTING ....................................................................................9-54
3. SERVICING SPECIFICATIONS ....................................................................9-55
4. TIGHTENING TORQUES ..............................................................................9-57
[1] GENERAL USE SCREWS, BOLTS AND NUTS .................................. 9-S7
[2] HYDRAULIC HOSES FITTING AND FLARE PiPES ...........................9-57
[3] TIGHTENING TORQUES
OF SCREWS, BOLT AND NUTS ON THE
TABLE BELOW ARE ESPECIALLY SPECIFIED .................................9-57
5. DISMOUNTING AND MOUNTING ................................................................ 9-S8
[1] DISMOUNTING THE BACKHOE ............................................................ 9-S8
[2] MOUNTING THE BACKHOE TO TRACTOR .....................................9-510
[3] DISASSEMBLING THE BACKHOE ......................................................9-512
6. CHECKING, DISASSEMBLING AND SERVICING .................................... 9-S16
[1] CONTROL VALVE .................................................................................9-516
(1) Checking and Adjusting ....................................................................9-516
(2) Disassembling and Assembling ........................................................9-516
[2] BOOM, DIPPERSTICK, BUCKET, SWING AND STABILIZER
CyLINDER ..............................................................................................9-518
(1) Disassembling and Assembling ........................................................9-518