Rosco Maximizer 3B User Manual

8-2
Rosco Maximizer 3B Asphalt Distributor
Troubleshooting
Table 8-1. Air Solenoids
SYMPTOM CAUSE REMEDY
Air solenoid valves leaking Spool section jammed or sticking
on air valve
Replace spool.
NOTE: Block at A & B ports with pipe plugs.
Bench test assembly with shop air
supplied to inlet. Manually and/or
electrically operate each valve section
to insure proper operation.
Air solenoid valve sticking Dirt in valves or gummy deposits
causing spool to hang up
Clean or replace. Solvent washing of air valves
creates problems by causing valve seals to
swell. Replacement is the most reliable repair.
Dirt in valves Check truck air system for water or
contamination
Bodies of valves damaged or
warped
Replace valves
Solenoids are hot. (Too
hot to hold on to after
they have been energized
continuously for several
minutes.)
NOTE: Solenoids will feel
hot to the touch
when operating
properly.
Short in solenoid wiring Check voltage marked on side of solenoid.
Should show 12V DC
General
The following Troubleshooting Guide includes some
problems that an operator may encounter during
the course of operating the Maximizer 3B Asphalt
Distributor. It also includes some acceptable
corrections to these problems. Unless otherwise noted,
the problems listed here are those which an operator
can diagnose and repair. See an authorized ROSCO
Dealer/Distributor for diagnosis and repair of problems
not listed.
For specic engine and hydraulic problems not covered
by this guide, refer to the Engine or Hydraulic Pump/
Motor Manufacturer’s manual.
DO NOT attempt to service or repair
major components, such as the engine, hydrostatic
pump or motor, unless authorized to do so by your
ROSCO Dealer/Distributor. ANY UNAUTHORIZED
REPAIR WILL VOID THE WARRANTY.
When a problem occurs, don’t overlook the simple
causes. For example, a starting problem could be
caused by something as simple as an empty fuel tank.
After a problem has been corrected, be sure to repair
or replace the mechanical component that caused the
problem.
Troubleshooting Charts
The troubleshooting charts below identify the most
common symptoms of failure. Use these charts to help
identify the failed component and possible remedies.
If the problem persists, see your authorized LeeBoy
Dealer (see Contact Information in Section 3).
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Rosco Maximizer 3B Specifications

General

Brand	Rosco
Model	Maximizer 3B
Category	Utility Vehicle
Language	English