Disassembly And Reassembly Of The Crank Case And Rear Handle; Reassembly Of The Antivibration Coil Spring Ass'y; Tightening Of The Nut M6; Rear Handle And Crank Case - Hitachi CM 75EAP Service Manual

5. Disassembly and reassembly of the crank case and rear handle

[Tools required]
• Flat-blade screwdriver
• Double-head wrench 10 x 19 mm
• 10 mm socket torque wrench
(1) Disassembly
• Fit the tip of a flat-blade screwdriver into the slot
of the bolt portion of the Spring Holders [60] [140]
to prevent bolt rotation, and then remove the Nut
M6 [47] and Long Nut M6 [116] by using a
double-head wrench 10 x 19 mm or similar tool.
(2) Reassembly
Reassembly can be conducted by reversing the
disassembly procedure. However, special
attention should be given to the following items.
• Mount the Spring Holders [60] [140] so that the
first loop is above that of the Antivibration Springs
[120] [141] [201]. (See the upper-right figure.)
• Apply 0.1 to 0.3 g of Chemiseal L-391 (Chemitech
Inc.) to the bolt portions of the Spring Holders [60]
[140] or the female threads of Nut M6 [47] and
Long Nut M6 [116].
• Fit the tip of a flat-blade screwdriver into the slot
of the bolt portion of the Spring Holders [60] [140]
to prevent bolt rotation as shown on the right, and
firmly tighten the Nut M6 [47] and Long Nut M6
[116] without turning the Spring Holders [60]
[140] together by using a double-head wrench 10
x 19 mm or similar tool.
Then tighten the Nut M6 [47] and Long Nut M6 [116] at a specified torque of 5.5±0.5 N•m {56±5
kgf•cm} by using a 10 mm socket torque wrench to check the torque.

• Rear handle and crank case

[140]
[47]
[116]
[60]
[120]

• Reassembly of the antivibration coil spring ass'y

The Antivibration Springs [120][141][201] must not
exceed this surface of the Spring Holders [60][140].
Up to 1 mm
[120] [141] [201]

• Tightening of the nut M6

[47] [116]
[141]
[6]
[47]
[60]
[201]
-14-
[47] [116]
[60] [140]