Komatsu ecot3 PC300LC-8 Shop Manual page 970

SEN02639-02
a Apply grease (G2-LI) to the rocking part of
shaft (14) and the contact surfaces of lever
(15) and piston (7) and the contact surfaces of
damper (16) and pin (17).
2
Quantity of grease (G2-LI)
Rocking part of shaft:
Contact surfaces of lever (15) and piston (7):
Contact surfaces of damper (16) and pin
(17):
a Install washer (18) 1.6 mm thick first. If the dif-
ference between both sides at the stroke end
of the lever exceeds 0.7°, change the washer
thickness to reduce the difference to below
0.7°. (If the washer thickness is reduced by
0.3 mm, the stroke end angle is increased by
0.39°.)
q Thickness of washer (t):
a Tighten each part to the following torque.
q Bolt (19): 27 – 34 Nm {2.8 – 3.5 kgm}
q Screw (20):
0.441 – 0.558 Nm {0.045 – 0.06 kgm}
q Bolt (21): 25 – 31 Nm {2.5 – 3.2 kgm}
q Bolt (24): 19.6 – 27.4 Nm {2.0 – 2.8 kgm}
q Plug (25): 24.5 – 34.3 Nm {2.5 – 3.5 kgm}
Plug (26): 24.5 – 34.3 Nm {2.5 – 3.5 kgm}
q
Plug (27): 9.8 – 14.7 Nm {1.0 – 1.5 kgm}
q
q Plug (28): 4 – 9 Nm {0.4 – 0.9 kgm}
q Plug (29): 6 – 11 Nm {0.6 – 1.1 kgm}
q Plug (30):
1.27 – 1.67 Nm {0.13 – 0.17 kgm}
18
4 – 8 cc/periphery
0.3 – 0.8 cc/place
0.3 – 0.8 cc/place
1.0, 1.3, 1.6, 1.9, 2.2 mm
50 Disassembly and assembly
PC300, 350-8