Komatsu PC1250-11, Оригинальное руководство пользователя

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1) Open the grease pump box on the right side of the
machine.
2) Remove the bolts (1) (3 pieces), and remove the plate
(2) from the spare storage of grease can.
3) Remove the bolts (3) (4 pieces) on top of the revolving
frame, and remove the cover (4).
4) Apply the socket wrench (width across flats : 50 mm)
and extension bar to the bolt (A), and tighten the bolt.
Tightening torque of bolt (A)
Target value: 2205 Nm {225 kgm}
Allowable range: 1960 to 2450 Nm {200 to 250 kgm}
2.
Procedure for tightening swing circle bolt (B)
1) Perform the swing of upper structure by 90 ° against
the undercarriage.
2) Apply the socket wrench (width across flats : 50 mm)
and extension bar to the bolt (B) from the right (or left)
side of the undercarriage frame, and tighten the bolt.
Tightening torque of bolt (B)
Target value: 2205 Nm {225 kgm}
Allowable range: 1960 to 2450 Nm {200 to 250 kgm}
MAINTENANCE PROCEDURE MAINTENANCE
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