Bisonte BTA-450TR, User Manual, Page: 42 / 57

a. Plug chain adapter(13) to the chain axle(2);
b. Hold the chain(6) around chain adapter(13) and axle(2), then secure two head of the chain
with chain pin(4) and chain lock(3);
c. Secure bolt(55) until the chain is tight enough;
d. Assemble chain cover(14) to the fixation(70) and secure with bolt(67) tightly.
Starting
Be sure the depth control is in the “0” depth position and move both stop switches to the “ON”
position. Always stand to the rear of the trencher, away from the side delivery auger and
digging chain while starting the engine. Always start the trencher at the job site and allow it to
warm up. While the machine is running, check that all controls are working properly before
using.
Start the engine following the procedures:
1. Make sure the fuel shut- off valve is in the “ON” position .
2. Move the choke control lever to the “CHOKE” position (should only be needed if the
engine is cold).
3. Move the throttle control lever to the “ FAST ” position.
4. Recoil Start: Turn the Ignition Sw itch to the “On” position . Grasp the recoil starter handle
and slowly pull until you feel resistance. Let the cord retract a little bit then pull the cord
rapidly to start the engine. One or two pulls usually starts the engine.
5. Electric Start: Turn and hold the Key in the start position until Engine starts then let the
Key return to run position.
6. Move the choke control lever (if used for cold engine) slowly back to the “RUN” position
when the engine is running well.
7. If the Trencher has not been running (cold engine), warm up the engine by running the
engine at half throttle for 3 to 4 minutes, then advance the engine throttle control to the
maximum speed.
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