6 - Maintenance
6.14
Breakaway section adjustment (SPC boom)
The function of the breakaway section is to prevent or reduce boom
damage, should it strike an object or the ground.
Adjust the screw (A) until the breakaway will release
at a force of 18 lbs
(80 N) at the extremity. Please note that the clutch must be well greased
before adjustment is commenced.
Check/adjust sprocket timing (SPB only)
1. Unfold the boom and stand on its rear side.
2. Check that the pin connection (A) in the timing chain is aligned
with the center line (B) between the sprocket. Note f
orward driving
direction (C) - adjustment is done at rearside of the boom. (A) is the
7th pin connection on the chain.
3. To adjust timing, loosen turnbuckles on the front and rear cables
until slack.
4. Line up the chain and spro
cket as indicated in step 2 above.
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