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MANUAL TROUBLE-SHOOTING Section 19<br />
19.1 .....Machine Dead<br />
1. Check main switch on rear panel is illuminated and if not<br />
check main fuse at mains supply.<br />
2. If there is power supply to the machine, replace the main<br />
switch<br />
3. If the main switch is illuminated, check the logic fuse (F 1)<br />
on back of control box. (See Note)<br />
4. Check connections at back of control box.<br />
5. Replace control box.<br />
Note ........ Fast blow fuse 315MA has been replaced with a 100MA<br />
Time Delay fuse from machine serial No. 013640WDAC.<br />
19.2 .....Air On but Paper Not Feeding<br />
CHECK TO SEE IF VACUUM ROLLER IS ROTATING, IF NOT :-<br />
1. Check that the paper gate is not set too low and jamming<br />
the vacuum roller.<br />
2. Place your hand under the feed bed, hold the belt and move<br />
it manually. If the drum does not rotate, the problem will be<br />
either a transmission failure or the vacuum roller has<br />
seized. (See section 3.1 for vacuum roller replacement).<br />
3. To check transmission, inspect the drive through the<br />
universal joints, ie, grub screws in coupling hubs.<br />
4. If the universal joint is sound, start the motors and look to<br />
see if the gearbox handwheel (located under the feed bed)<br />
is turning. If the handwheel is turning, the gearbox belt<br />
drive (100XL inside the gearbox) may have snapped. See<br />
section 7 for details of how to remove the belt drive guard<br />
cover and the gearbox. Replace the belt in the gearbox by<br />
following the drawing in the parts manual and referring to<br />
section 7.<br />
SYSTEMS PAGE 53
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