CONTENTS
SERVICING
1. GENERAL .......................................................................................................9-S1
[1] BACKHOE IDENTIFICATION..................................................................9-S1
[2] GENERAL PRECAUTION .......................................................................9-S1
[3] LUBRICANTS ...........................................................................................9-S2
[4] MAINTENANCE CHECK LIST................................................................9-S2
[5] CHECK AND MAINTENANCE................................................................9-S2
(1) Check Points of Each Use or Daily.....................................................9-S2
(2) Check Points of Every 10 Hours.........................................................9-S3
2. TROUBLESHOOTING ....................................................................................9-S4
3. SERVICING SPECIFICATIONS ....................................................................9-S5
4. TIGHTENING TORQUES ..............................................................................9-S7
[1] GENERAL USE SCREWS, BOLTS AND NUTS..................................9-S7
[2] HYDRAULIC HOSES FITTING AND FLARE PIPES...........................9-S7
[3] TIGHTENING TORQUES OF SCREWS, BOLT AND NUTS ON THE
TABLE BELOW ARE ESPECIALLY SPECIFIED .................................9-S7
5. DISMOUNTING AND MOUNTING................................................................9-S8
[1] DISMOUNTING THE BACKHOE............................................................9-S8
[2] MOUNTING THE BACKHOE TO TRACTOR .....................................9-S10
[3] DISASSEMBLING THE BACKHOE......................................................9-S12
6. CHECKING, DISASSEMBLING AND SERVICING....................................9-S16
[1] CONTROL VALVE.................................................................................9-S16
(1) Checking and Adjusting ....................................................................9-S16
(2) Disassembling and Assembling........................................................9-S16
[2] BOOM, DIPPERSTICK, BUCKET, SWING AND STABILIZER
CYLINDER..............................................................................................9-S18
(1) Disassembling and Assembling........................................................9-S18