PREVOST X3-45 Multiplex User Manual

14
COMPRESSOR TROUBLESHOOTING CHART (Continued)
SYMPTOMS CAUSE
REMEDY
4. Compressor fails to A. Faulty governor or A. Test the governor for proper operation and
unload. installation. inspect air lines to and from it for kinks or
restrictions. Replace or repair the governor or
connecting air lines
B. Faulty or worn unloader B. Inspect for worn, dirty or corroded unloader
pistons or bores. piston and bore. Replace as necessary.
5. Compressor leaks oil. A. Damaged mounting gasket. A. Check the compressor mounting bolt torque. If
the mounting bolt torque is low, replace the
compressor mounting gasket before re-torquing
the mounting bolts.
B. Cracked crankcase or end B. Visually inspect the compressor exterior for
cover. cracked or broken components. Cracked or
broken crankcases or mounting flanges can be
caused by loose mounting bolts. The end cover
can be cracked by over-torquing fitting or plugs
installed in the end cover. Replace or repair the
compressor as necessary.
C. Loose crankcase end C. Check the cap screw torques and tighten as
cover or bottom cover. necessary. Replace gaskets or o-ring.
D. Loose oil supply or return D. Check the torque of external oil line fittings and
line fittings. tighten as necessary.
E. Porous compressor casting. E. Replace the compressor if porosity is found.
F. Mounting flange or end F. Replace as necessary.
cover, o-ring or gasket
missing, cut or damaged.
6. Compressor constantly A. Leaking compressor A. Repair or replace as necessary. Remove the
cycles (compressor unloader piston. compressor inlet air strainer or fitting. With the
remains unloaded for a compressor unloaded (not compressing air),
very short time). listen for air escaping.
B. Faulty Governor installation. B. Test the governor for proper operation and
inspect air lines for kinks or restrictions. Replace
or repair the governor or connecting air lines as
required.
C. Excessive system leakage. C. Test for excessive system leakage as instructed
in Symptom #3 Remedy E. Reduce leakage
wherever possible.
D. Excessive reservoir D. Drain reservoirs.
contaminants.

PREVOST X3-45 Multiplex Specifications

General

Length	45 ft
Width	102 in
Engine	Volvo D13
Horsepower	500 hp
GVWR	54, 000 lbs
Height	146 in
Sleeping Capacity	Varies based on floor plan
Water Capacity	Varies based on floor plan