Troubleshooting Guide - Factory Cat 34 Operator, Parts, & Service Manual

PROBLEM: BROOMS ROTATE, BUT MACHINE DOES NOT SWEEP WELL.
1. Main Broom may be worn out. While machine can sweep with as little as one half inch
of main broom fiber, main broom should have 1.0" of fiber or more to sweep really well.
2. Main Broom bounces. This will cause skipping over debris. If this occurs, broom must
be replaced.
Cause of broom bounce is generally bent fiber on one side, causing broom to become oval.
This, in turn, is caused by leaving the broom on the ground for long periods of time without
broom rotating, which will bend the fiber. A second cause is use of a mainbroom that is
made incorrectly. For this reason, avoid "will-fit" main brooms made by other manufacturers
to fit our machines. Our design requires brooms in perfect balance and perfectly round.
3. Check rubber flap on lip of the hopper.
and must be in good condition or machine will throw debris forward of machine.
flap is torn or missing, replace with a new part.
PROBLEM: MACHINE SWEEPS UP DEBRIS FINE, BUT BLOWS DUST.
1. Filter is dirty. With power off, turn crank 20 times to clean filter.
2. Air is shut off. Open air shutoff control.
3. Filter is clogged from mud. Remove and inspect filter. Clean if necessary by shaking
and vaccuuming the filter.
4. Air leaks. Check and replace neoprene floor seals as needed.
5. Is fan turning with main motor? (Has set screw come out of fan?).
PROBLEM: MACHINE SWEEPS OK, DUST CONTROL PICKS UP DUST, BUT BLOWS IT INTO
THE ENGINE COMPARTMENT
1. Remove the black filter cover. (There are three screws at the rear. Cover fits into a slot
at the front). Then check for improper seal between filter and body. Filter is taped to the
filter element support grill (Part No. 4-505) with double-sided carpet tape. This seal must
be tight.
2. Check filter for pinhole leaks and repair or replace as needed. (You can pull filter and its
mounting grid straight out of the machine once the filter cover is removed. You can also
inspect the filter from undeneath the machine).

TROUBLESHOOTING GUIDE

PAGE 14
This piece is very important to good sweeping,
.
Hopper's
Rubber Flap
If