Kalkomat COMBO PRIZE Technical Information page 12

c) Maintenance of mechanism and regulating spring
Periodically (once a month or more often, or if the lowering speed of
punching bag is fairly low) all moving elements should be rubbed/
sprayed with WD-40 or grease.
If punching bag lowers slowly or too fast one should check if spring is
properly stretched. Spring can be adjusted with screw that is in the front/
left side after taking the masking net.
In case of forced lowering mechanism replacement one should unscrew
plastic casing, and then take off masking board (black from the bottom)
and remember about the retro cop light.
d) Manual punching bag reposition
In case the punching bag is vibrating too much (or if it is rotating around
its own axis), the top nut located on the punching bag screw should be
tightened (loosen the lower nut first) until the bag is not rotating any
more.
e) Replacement of inner punch bag bladder
To replace inner bladder of the punch bag one should untie rope, take
out old insert and replace it with a new rubber bladder. A special
attention must be given to the location of the bladder valve. The valve
must be placed in the opening of the leather cover.
f) Bulb replacement, "START" and "RANDOM" button
In case of bulb failure in the "START" button one should take out
micro-switch from the casing (by slight turn and then pull) and then
proceed with bulb replacement [bulb spec: 12 Volt & 3 Watt].
g) Fuse replacement
Machine is equipped with two long term fuses on the main electronic
board [specs: 250V & 5 A (2 pieces) and 12V & 25A (1 piece)]. In case
of short circuit situation and/ or insufficient power supplied to the
electronic main board one should first check the fuses and if they are
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