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3-1-1 Tail Transmission Subassembly
No. Material No.
Description
1
HMV6701Z
d12xD18xBRG
2
HMJ2-8N
M2x8 Self-Tapping Screw
3
HMM3B
M3 Locknut
4
HME3-4B
M3x4 Set Screw
5
HMC3-10B
M3x10 Socket Screw
6
HMY2-12
Pin 2x12
7
HMJ3-20N
M3x20 Self-Tapping Screw
8
BK0088
d3xD5x0.5 Washer
9
HMV740ZZ
d4xD7x2.5 BRG
Install bearings No. 1 and 10 into the No. 12/13 Tail Cases.
Install No. 15 Tail Bevel Gear onto the Tail Shaft. Gently tap
the No. 6 Pin into the Bevel Gear and Tail Shaft. Then secure
the pin with a No. 4 Set Screw with Loctite. Slide the tail shaft
into the gearbox case and bearing.
After installing the M3x4 set screws, try pushing on the 2x12
pin with a small Allen wrench to make sure the set screw has
locked the pin in place securely. Before closing the two halves
of the Tail Cases, please check the gear mesh between gears
No. 14 and No. 15. If the gears mesh too tight, then a 5 mm
i.d. washer should be added to move the gear No. 15 further
out. If there exists too much freeplay, then a 5 mm i.d. washer
to push gear No. 15 closer to gear No. 14.
(12)
(3)
Qty.
(13)
(1)
(14)
(10)
(6)
(4)
No. Material No.
Description
2
10 HMV1350
d5xD13x4 BRG
1
11 BK0346
Tail Pitch Control Lever
3
12 BK0370
Tail Case L
1
13 BK0371
Tail Case R
3
14 BK0372
Tail Input Bevel Gear
1
15 BK0373
Tail Output Bevel Gear
1
16 BK0075
Link Ball 4.8
1
17 BK0076
Collar d3xD4x10
2
18 3-1-2
Tail Rotor Subassembly
Install the No. 11 Tail Pitch Control Lever as shown with No. 7
Self-Tapping Screw, No. 16 Bushing, and No. 8 Washer, with
two No. 9 Bearings. Attach a No. 16 Link Ball with a No. 2
Screw.
Upon finishing Step 3-1-1, make sure there are no extra parts
left on your workbench.
(5)
(8)
(17)
(15)
(9)
(2)
(16)
(7)
23
(18)
(11)
Qty.
2
1
1
1
1
1
1
1
1
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