12
Adjustment: Throwing arm timing
1.
Disarm the machine by flicking the ARM/DISARM switch upwards towards
the DISARM position and immediately releasing (long enough for the trap to
fire, but not giving the machine a chance to rearm). The gearbox block will
now be pointing towards the front of the machine.
2.
Flick the ARM/DISARM switch upwards towards the DISARM position repeat-
edly until the gearbox block points towards the back of the machine but does
not contact the throwing arm. This reduces the spring tension.
3.
Note the position of the inside nut before removing the spring (as this deter-
mines the amount of spring tension set) then undo the rear nut and remove
the spring from the trap.
4.
With the spring removed, rotate the throwing arm until the mainshaft crank
is pointing towards the mainframe with the leading curve aligned with the
front edge of the square bearing tube. Refer to the diagram below.
5.
Loosen the throwing arm clamp block bolt until the throwing arm will move
around the mainshaft. Rotate the throwing arm clockwise (this is so the
mainshaft is held by the one-way bearing and doesn’t move) until the throw-
ing arm is positioned as in the diagram below, where X=15mm.
6.
Making sure both the mainshaft crank and the throwing arm are in the posi-
tions described, firmly tighten the throwing arm clamp block bolt. The arm
timing is now complete.
7.
Replace the spring paying attention to the orientation of the hook (Open side
inwards towards the frame).
