• The fuse holder is at the rear of the operator's seat.
• The fuses protect the electrical component and wiring from
burning out.
• If the fuse becomes corroded, or looks white powdery, or
the fuse is loose in the fuse holder, replace the fuse.
• Replace the fuse with the one of the same capacity.
Fuse capacities and circuit names
No.
Fuse ca-
pacity
Name of circuit
(1)
10 A
Pump secondary drive switch, swing parking
brake cancel switch
(2)
10 A
Optional power supply (1), heater drain (if
equipped)
(3)
10 A
PPC oil pressure lock solenoid, starting motor
cut-off relay
(4)
20 A
Window washer, cigarette lighter
(5)
10 A
Horn, flash light
(6)
10 A
Ribbon heater relay
(7)
10 A
Revolving lamp (if equipped)
(8)
10 A
Radio
(9)
10 A
Hydraulically operated stairway (if equipped)
(10)
20 A
Air conditioner unit, air conditioner compres-
sor
(11)
10 A
Power supply for external devices (if equip-
ped)
(12)
10 A
Machine push-up, boom vibration control
(13)
20 A
Optional power supply (2), 12 V power sup-
ply, seat heater, air suspension seat
(14)
5 A
Air conditioner ECU power supply
(15)
10 A
ACC (each controller)
(16)
10 A
Radio backup, room lamp, system operating
lamp
(17)
10 A
Staircase lighting, Hydraulically operated
stairway (if equipped)
(18)
10 A
Walk-through lighting
(19)
5 A
Air conditioner ECU backup
(20)
10 A
Optional power supply (3)
(21)
10 A
KDPF temperature sensor
OPERATION
EXPLANATION OF COMPONENTS
3-109
Содержание PC1250-11
Страница 2: ......
Страница 11: ...Do not repeatedly handle and lift loads FOREWORD VIBRATION LEVELS 1 9...
Страница 24: ......
Страница 66: ......
Страница 67: ...OPERATION Please read and make sure that you understand the SAFETY section before reading this section 3 1...
Страница 73: ...REMARK The above figure does not show all of the caution lamp symbols OPERATION GENERAL VIEW 3 7...
Страница 317: ...MAINTENANCE Please read and make sure that you understand the SAFETY section before reading this section 4 1...
Страница 377: ...Boom d Left side e Right side f Head side g Foot side MAINTENANCE MAINTENANCE PROCEDURE 4 61...
Страница 378: ...Arm h Left side i Right side MAINTENANCE PROCEDURE MAINTENANCE 4 62...
Страница 400: ......
Страница 401: ...SPECIFICATIONS 5 1...
Страница 406: ......
Страница 435: ...REPLACEMENT PARTS 7 1...
Страница 444: ......
Страница 452: ...PC1250 11 PC1250SP 11 HYDRAULIC EXCAVATOR Form No EENAM03651 2018 KOMATSU All Rights Reserved Printed in Belgium 06 2018...