1) Turn the fuel control dial (4) to High idle (MAX) posi-
tion.
2) Repeat the work equipment operation in step 6 for 3 to
5 minutes.
• Display (A): when temperature is correct: Caution
lamp background (C) is blue.
• Display (B): when temperature is low: Caution
lamp background (C) is white.
3) Check that the hydraulic oil temperature caution lamp
displays the correct temperature.
If it is not displaying the correct temperature, repeat
the step 2) until the hydraulic oil temperature caution
lamp (7) displays the correct temperature.
13. Before starting the work, check that the fuel control dial (4)
is at a position midway between Low idle (MIN) and High
idle (MAX).
If it is not at the midway position, set it to the midway posi-
tion and run the engine at a mid-range speed before oper-
ating.
14. Repeat the following operation slowly 3 to 5 times before
starting actual work.
Circulate the warm hydraulic oil through all control circuits.
• Boom operation: RAISE (E) ←→ LOWER (F)
• Arm operation: IN (B) ←→ OUT (A)
• Bucket operation: CURL (D)←→ DUMP (C)
• Swing operation: LEFT (G) ←→ RIGHT (H)
OPERATION
MACHINE OPERATIONS AND CONTROLS
3-165
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...
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Страница 401: ...SPECIFICATIONS 5 1...
Страница 406: ......
Страница 435: ...REPLACEMENT PARTS 7 1...
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Страница 452: ...PC1250 11 PC1250SP 11 HYDRAULIC EXCAVATOR Form No EENAM03651 2018 KOMATSU All Rights Reserved Printed in Belgium 06 2018...