12 Control Handle - Loop Handle; Special Servicing Tools, Servicing Aids; Removing The Control Handle; Fitting The Control Handle - Stihl 4180 Series Service Manual

12 Control Handle – Loop Handle
M5x12 (5 Nm / 44 lbf. in.)
12.1

Special Servicing Tools, Servicing Aids

Socket, T27 – 0812 542 2104
–
Torque wrench – 5910 890 0302
–
Screwdriver, T20 – 5910 890 2301
–
Screwdriver, T27x200 – 5910 890 2415
–
Punch-down tool – 5910 890 4000
–
STIHL multipurpose grease – 0781 120 1110
–
12.2

Removing the Control Handle

Remove the drive tube.
N
Loosen the screws (3) and pull the control handle off
N
the tube.
Remove short-circuit wire, ground wire and throttle
N
cable from the engine, @ 8.8.
12.3

Fitting the Control Handle

Fit ground wire, short-circuit wire and throttle cable on
N
the engine, @ 8.11.
Slide the control handle onto the tube so that lever (6)
N
faces up.
Insert and tighten down the screws (3).
N
Push the protective hose into the retainer so that it
N
remains straight.
Series 4180 Powerhead
1
2
3
16
15
2 3
M5x12 (5 Nm / 44 lbf. in.)
6
4 5
17
7
8
9
14
13
12.4

Disassembling the Control Handle

Remove the control handle, @ 12.2.
N
Take out the screws (12).
N
Remove 'outer handle molding' (18).
N
Relieve tension of torsion spring (10).
N
Remove the throttle trigger (11) together with
N
lever (9) and torsion spring (10).
Unhook the throttle cable (14).
N
Take lever (9) with torsion spring (10) out of the
N
throttle trigger (11).
Remove the torsion spring (10).
N
Remove the lockout lever (8).
N
Remove the torsion spring (7).
N
Inspect the lockout lever (8), torsion springs (7, 10)
N
and throttle trigger (11), and replace if necessary.
10
11
18
P4x16 (1,3 Nm / 12 lbf. in.)
12
31