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Hitachi CM 75EAP Service Manual page 30

Engine cutter
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• Remove the four Square Nuts M5 [103] and Grommet [178] from the Rear Handle Set [114].
• Push in Needle Pin D3 [132] with a round bar about 2.5 mm in diameter from outside of the Rear
Handle Set [114], and then remove the Throttle Lever [134] and Throttle Lever Spring [133].
• Pull out the Throttle Lock Pin Cap [199] with pliers, and remove the Throttle Lock Pin Spring [198] and
Throttle Lock Pin [179].
(2) Reassembly
Reassembly can be conducted by reversing the disassembly procedure. However, special attention
should be given to the following items.
• Hook the hook portion of the Throttle Lever Spring [133] to the Throttle Lever [134].
• Press-fit Needle Pin D3 [132] down to a point that is 7 to 8 mm deep from the Rear Handle Set [114].
• Insert the Trigger Lockout Collar [130] into the Trigger Lockout [131], and then insert both parts into
the Rear Handle Set [114]. Temporarily push the Trigger Lockout [131] toward the Throttle Lever [134],
and then pull it back to adjust the position.
• Fit the Throttle Lever Spring [133] into the groove of the Trigger Lockout [131]. The Throttle Lever
Spring [133] must be positioned behind the Trigger Lockout [131] as shown below.
• Press-fit Inner Cap (B) [111] into the Rear Handle Set [114] by using the jig J-382 (inner cap jig (A)
and inner cap jig (B)). For details, see the figure on the next page.
• Throttle lever and trigger lockout
[130]
[130]
Hook the hook portion of the
Throttle Lever Spring [133] here.
(1) (4)
[131]
[114]
[134]
[131]
The Throttle Lever Spring [133] must
be behind the Trigger Lockout [131].
[133]
[134]
Disassembly and reassembly of the trigger
lockout
• Disassembly
(2) (5)
(1) Push in the Trigger Lockout [131] toward
the Throttle Lever [134].
(2) Pull out the Trigger Lockout [131] while
keeping the retaining rib away from the
Rear Handle Set [114].
• Reassembly
(3) Insert the Trigger Lockout Collar [130] into
the Trigger Lockout [131].
(4) Push in the Trigger Lockout [131] toward
the Throttle Lever [134] with the Throttle
Lever Spring [133] positioned behind the
Trigger Lockout [131] as shown in the
Retaining rib
lower-left figure.
(5) Insert the Trigger Lockout [131] while
keeping the retaining rib away from the
Rear Handle Set [114].
(6) Adjust the position of the Trigger Lockout
[131] as shown in the lower-left figure.
Fit the Throttle Lever Spring
[133] into the groove.
[114]
-29-
[132]
[134]
[114]
Press-fit depth: 7.5±0.5

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Cm 75ebp