FOR BLOWER MODELS: STIHL BR340, 380 & 420
(REQUIRES 19.5” ALUMINUM FRAME SETTING)
IMPORTANT: USE LETTERS
SS
MARKED ON NEW BASE FOR INSTALLATION TO BLOWER
FRAME ON ALL MODELS LISTED ABOVE.
Mounting New Base to Blower Frame
1. Remove gas tank from blower (remove gas from tank first).
2. Remove blower body from blower frame.
3. Remove blower handle located on top of blower.
4. Turn blower frame upside down with back of blower frame closest to you. See illustration A-1.
5. Find two existing screw holes located on back corners of blower frame. See Back Corner Detail illustration
A-1v.
6. Place new base on bottom of blower frame. Align
SS
holes marked at rear of new base with existing holes
on blower frame using a #10-32X1” screw. Screw 1” screw through new base marked
SS
on blower frame.
Repeat for opposite side of base, using holes marked
SS
.
7. Once the new base is secured to the blower frame, drill (2) 1/4” holes on the front of the blower frame. Use
SS
on the base for a guide.
8. Install (2) tee nuts in 1/4” holes on blower frame.
9.
Installing Tee Nuts:
See illustration Tee Nut Installation
A. Place tee nut in 1/4” hole and press until the three prongs contact the frame.
B. With a pen, mark the spots where the three prongs touch the frame.
C. Remove tee nut. Using a 5/64” bit, drill a hole centered within the three pen marks.
D. Press tee nut into place and repeat with remaining tee nut.
10. Remove base. Reinstall gas tank.
11. With gas tank in place, reinstall base on blower frame using (2) #10-32X1” for base back and (2) #10-32X1
3/4” screws for base front.
12. Securing New Base to Blower Frame:
Use holes marked
SS
.
To avoid frame damage, DO NOT OVER TIGHTEN SCREWS
.
Hardware needed:
(2) #10-32X1” Screws (back of frame)
(2) #10-32X1 3/4” Screws (front of frame)
(2) #10-32X5/16” Tee Nuts
13. Reattach blower body to frame.
14. Assembling Aluminum Frame:
A. Slide L-shaped piece into aluminum frame piece.
B. Snap pin into correct position for your blower model and tighten screw cap by hand. Repeat
for other side.
15. Mounting Aluminum Frame to New Base
A. Place aluminum frame legs in two slots of new base with ends of legs toward front of blower
frame.
B. Locate letters
FM
marked on each side of the base.
C. Install #10-32x1 1/4” screws to support aluminum frame.
Hardware Needed:
(4) #10-32x1 1/4” Screws
(4) #10-32 Flat Washers
(4) #10-32 Lock Washers
16. Mounting Spray Tank to Aluminum Frame
A. Unscrew caps on each side of installed frame.
B. Push adjustable snap pins in and remove top aluminum piece.
C. Pull on each side of frame to allow space for tank to snap into place.
D. Reconnect aluminum pieces.
6
Summary of Contents for TCB100
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