3.
Lower the hydraulically operated stairway by referring to
“PROCEDURE FOR LOWERING STAIRWAY BY OPER-
ATING FROM MACHINE”.
4.
Hold the iron plate (2) over the proximity switch (1) which
is at the mounting portion of the hydraulically operated
stairway. Check that the operation pilot lamp (L) lights up.
• If the operation pilot lamp lights up (L)
The proximity switch (1) is operated correctly. Perform
the adjustment according to the following procedure
so that the operation pilot lamp (L) securely lights up.
• If the operation pilot lamp does not light up (L)
There may be a failure in the proximity switch. See
“ACTIONS IF PROXIMITY SWITCH HAS FAILED”.
5.
Store the hydraulically operated stairway by referring to
“PROCEDURE FOR STORING STAIRWAY BY OPERAT-
ING FROM MACHINE”.
6.
Adjust the clearance (C) between the proximity switch (1)
and the plate (3) attached to the hydraulically operated
stairway so that it is 4 to 6 mm.
ATTACHMENTS AND OPTIONS
HANDLE THE HYDRAULICALLY OPERATED STAIRWAY
6-27
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...
Страница 444: ......
Страница 452: ...PC1250 11 PC1250SP 11 HYDRAULIC EXCAVATOR Form No EENAM03651 2018 KOMATSU All Rights Reserved Printed in Belgium 06 2018...