1.
Check that the engine coolant temperature caution lamp
(1) displays the correct temperature.
If it displays the low temperature, perform additional warm-
up operation according to step 2 until it displays the correct
temperature.
• Display (A): when temperature is correct: Caution
lamp background (C) is blue.
• Display (B): when temperature is low: Caution lamp
background (C) is white.
2.
Turn the fuel control dial (2) to the middle between Low
idle (MIN) and High idle (MAX) to run the engine at a medi-
um speed.
Run the engine with no load until the engine coolant tempera-
ture caution lamp (1) displays the correct temperature.
• Display (A): when temperature is correct: Caution lamp
background (C) is blue.
• Display (B): when temperature is low: Caution lamp back-
ground (C) is white.
If the engine coolant temperature caution lamp displays the correct temperature, the engine warm-up operation
is completed.
Then, perform the warm-up operation for the hydraulic components.
MACHINE OPERATIONS AND CONTROLS
OPERATION
3-160
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...