Revision B
Revised 5/20/2003 12:33 PM
41
Operating Instructions BMS-270LPII
Troubleshooting
9.1 Scraper Troubleshooting
Trouble Possible
Cause
Remedy
1.
The scraper blade
lifts immediately
after being lowered.
a.
Pilot operated check valve
dirty
b.
Pilot operated check valve
defective
a.
Have P.O. check valve
inspected and cleaned by a
specialist
b.
Replace P.O. check valve
2.
With idle running,
the scraper is
extraordinarily loud.
a.
Air in hydraulic circuit
b.
The hydraulic components
are defective.
a.
See Trouble
12 and 14.
b.
Have the hydraulic system
checked by a specialist.
3.
The scraper does
not work when the
pump is generating
pressure above 1000
psi.
a.
Severe blockage in wheel
drive motor hoses
b.
Wheel drive motors
defective
a.
Check hoses for blockage
and replace hose if necessary
b.
Call Blastrac Service
Center
4.
The hoses are
worn.
a.
Hose rubbing on
components
b.
Hose has been exposed to
poor environmental
conditions
a.
Replace and protect the
hose.
b.
Replace hose and protect
equipment from poor
conditions
5.
The multiscraper
makes an unusually
loud hissing or
whistling noise.
a.
Fluid is passing over relief
valves
b.
Air in hydraulic circuit
a.
This could be normal on an
intermittent basis. If noise is
continuous call a Blastrac
Service Center.
b.
See Trouble
2, 12 and 14
6.
Too much play in
the operating lever.
See possible cause 1a and 1b
See remedy
1a
and
1b
7.
Oil deposits are
evident on the inner
sides of the driving
wheels.
a.
The shaft seals of the
wheel motors worn out.
b
. Hose fittings are loose.
a.
Have the shaft seals
replaced by a specialist.
b.
Tighten hose fitting.
Replace hose or fitting if
necessary
WARNING: Please refer to the specific safety and maintenance
recommendations throughout this manual and the manuals of the components
being maintained before attempting any maintenance. Failure to adhere to
these recommendations could result in equipment damage, serious injury or
death.
