ii
Y-4 Air Bleeding Procedure ................. 30
1. Hydraulic pump ....................................... 30
1.1 Gear pump................................................ 30
1.2 Variable piston pump ................................ 30
1.3 Variable piston pump (when the tank
pressurization tool is used) ................ 31
1.4 Tank pressurization tool ............................ 31
1.5 Other (cylinder) ......................................... 31
2. Winch brake ............................................ 32
3. Service brake .......................................... 33
4. Hydraulic motor assy .............................. 33
4.1 Slewing motor ........................................... 33
4.2 Winch motor ............................................. 34
4.3 Air conditioner motor ................................ 34
5. Winch counterbalance valve
(main and auxiliary) ..................... 34
6. Slewing control valve
(back-pressure valve) .................. 35
7. Pilot circuit (slewing valve,
hydraulic pilot control valves) ....... 35
8. Positive control ....................................... 36
9. Hydraulic valve (winch brake) ................. 37
10. Cylinder circuits ...................................... 37
Y-5 Adjusting Procedure (Electric) ..... 39
1. B-pin, C-pin detection switch
(CNC1 to C8) ............................... 39
2. Boom section detection switch
(CNRL etc.) ................................. 40
3. Jib stowed detection switch (CN572) ...... 41
4. Jib lock pin retraction detection switch
(CN573) ....................................... 41
5. Main winch drum rotation
detection switch (CN591) ............. 42
6. Aux. winch drum rotation
detection switch (CN592) ............. 42
7. Over-front detection switch (CN521) ....... 43
8. Control lever stand position
detection switch (left) (CN529) ..... 43
9. Straight ahead detection switch
(CN408) ....................................... 44
10. Counterweight equipped
detection switch (left) (CN457) ..... 44
11. Counterweight equipped
detection switch (right) (CN994) ... 44
12. Counterweight/boom
mounting /dismounting position
detection switch (right) (CN1538)
and switch (left) (CN1539) ........... 45
12.1 Rear side adjusting procedure .................. 45
12.2 Front side adjusting procedure
(GR-1600XL only) ............................... 46
13. Cab tilt stowed detection switch
(CN1155) ..................................... 47
14. Over-unwinding detection switch
(main winch) (option) (CN595) ..... 47
15. Over-unwinding detection switch
(aux. winch) (option) (CN596) ...... 47
16. Vehicle height detection .......................... 48
16.1 Assembly adjustment ................................ 48
16.2 Switch adjustment
(rear left: CN404, CN405) ................... 50
16.3 Switch adjustment
(rear right: CN406, CN407) ................. 51
17. Slewing lock detection switch (CN1154) .. 52
Содержание GR-1600XL
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