HLA BR72, Руководство оператора

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TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
Brush slows or stops when
sweeping
Travel speed too fast
Travel no more than 5 mph (8kph) while
sweeping
Trying to sweep too much
material at once
Make several passes with Broom
Relief pressure set too low Set relief pressure to 2000 psi (138.0 bars)
Pump has failed Contact dealer to repair or replace
Filter plugging Change or clean filter
Hydraulic motor is failing Test hydraulic system
Brush head swings too quickly
Set screw in plug on manifold
loose
Loosen jam nut and then turn set screw in
until it stops; turn set screw out 1
½ turns;
tighten jam nut
Brush head swings too slowly or
won’t swing Set screw in plug on manifold too
tight
Loosen jam nut and then turn set screw in
until it stops; turn set screw out 1
½ turns;
tighten jam nut
Brush head swings only one
direction
Set screw on manifold out of
adjustment
Loosen jam nut and then turn set screw in
until it stops; turn set screw out 1
½ turns;
tighten jam nut
Dirt or debris in spools Contact your dealer or HLA
Brush head assembly “bounces”
during sweeping
Travel speed too fast and/or
brush speed too slow
Find correct combination of ground
and brush speeds: do not travel at
more than 5 mph (8 kph)
Core is bent Replace core
Brush wears into cone shape
Broom is not level Level Broom before each use
Tires on power unit at different
pressures or are different sizes Check tire sizes and rating; make
corrections as necessary
Brush wears very quickly Brush pattern too wide
Adjust brush pattern 2-4 inches
(5-10cm)
Hydraulic drive motors
malfunctioning
Low hydraulic fluid level Check and replenish hydraulic fluid.
Improper hose hookup
Check and correct hydraulic hose
connections.
Broken hydraulic line Check for leaks and replace line.
Jammed brush Remove interference.
Quick disconnect coupler(s) are
not connected or “Flow Check” Check coupler connections.
Replace coupler(s) if necessary.
Hydraulic hose blockage
Check for evidence of damage to hoses
that would block flow of oil between
cylinders and control valve.
Hydraulic fluid leaking past seals Replace seals.