Tail Rotor Subassembly - THUNDER TIGER RAPTOR Assembly Manual

3-1-2 Tail Rotor Subassembly

No. Material No. Description
1 HMJ2-8N M2x8 Self-Tapping Screw
2 HSE2-10B M2x10 Self-Tapping Screw
3 HMC2510B M2.5x10 Socket Screw
4 HMM25 M2.5 Locknut
5 HMM3B M3 Locknut
6 HME3-18.5B M3x18.5 Set Screw
7 HMV1050ZZO d5xD10x4 Angular BRG
8 HMV1060 d6xD10X3 BRG
9 BK0302-1 Tail Pitch Housing A
10 BK0303-1 Tail Pitch Housing B
Assemble the Tail Pitch Control Slider and Pitch Control Fork
according to the drawing as follows. Insert bearings No. 8
Bearings into No. 14 Tail Pitch Control Slider. Add a tiny drop
of Loctite on the "outside" surface of No. 15 Tail Pitch Control
Bushing, then slide it into the two bearings in the No. 14 Tail
Pitch Control Slider. Thread the No. 12 Pitch Control Fork onto
the brass bushing until the bushing does not have any in and
out play, but the pitch fork should still be able to spin freely in
the bearings. Add a No. 17 Link Ball with a No. 1 Screw. Then
slide the finished pitch slider onto the tail shaft.
Now assemble the Tail Blade Grip System. First install the No.
11 Tail Rotor Hub onto the No. 16 Tail Rotor Shaft. The hub
will be almost flush with the end of the tail rotor shaft. Secure
the hub to the shaft by using two No. 6 M3x18.5 set screws.
Red Side In
Black Side Out
Warning:
Please note the assembling direction of the
angular bearing. If they are not assembled
properly as illustrated, they will easily fail
and result in unexpected danger.
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No. Material No. Description
11 BK0307 Tail Rotor Hub
12 BK0025 Tail Pitch Control Fork
13 BK0026 Tail Pitch Control Link
14 BK0027 Tail Pitch Control Slider
15 BK0345 Tail Pitch Control Slide Bushing
16 BK0374 Tail Shaft
17 BK0075 Link Ball 4.8
18 BK0082 Collar d2xD3x4
19 BK0083 Pin 2x9
Add a tiny drop of Loctite on the set screw before threading
them into the hub. If too much Loctite is used then it will be
impossible to remove the set screws for service in the future.
A tiny drop of Loctite is sufficient to prevent them from vibrating
out. Put a tiny drop of Loctite on the inside surface of No. 7
Bearings. Then slide two No. 7 bearings onto each end of the
tail rotor hub. Add the No. 6 3mm locknut. Do not over tighten
the two locknuts because that may break the No. 6 set screw.
Now add the two piece plastic No. 9/10 Tail Pitch Housings.
Install No. 13 Tail Pitch Control Links, No. 18 Collars, and No.
2 Screws according to the drawing.
Attach the Tail Pitch Control Links No. 13 to the Pitch Fork using
the small pins, No. 19.
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