PREVOST LE MIRAGE XLII BUS SHELLS User Manual

Section 26: XLII SLIDE-OUT
PA1553
43
20.3 TROUBLESHOOTING - MECHANICAL COMPONENTS
PROBLEM CAUSE CORRECTIVE ACTION
Slide-out does not retract
or extend when
depressing the control
switch.
A. Electrical motor failure;
B. Speed reduction gearbox failure;
C. Security pin still engaged in receptacle;
A. Replace motor.
B. Inspect gearbox components,
particularly: bronze wheel or first
reduction stage output shaft.
Replace damaged components.
C. Disengage pin and check if air
cylinder is damaged.
Slide-out is not straight
once retracted or during
retracting or extending
operation.
A. Broken rack tooth;
B. Faulty rack attachment;
C. Faulty shaft key at speed reduction
gearbox or jaw coupling;
D. Pinion keyless bushing slipping;
E. Shaft breaking;
F. Flange bearing attachment loosen;
A. Replace rack.
B. Tighten mounting bolts, apply
proper torque and use Loctite
threadlocker (replace rack if
necessary).
C. Replace key or component having
a damaged keyway.
D. Realign slide-out and apply proper
torque to keyless bushing.
E. Replace shaft.
F. Reposition shaft and tighten
flange bearing mounting bolts.
Slide-out moves out
slightly when vehicle is
traveling.
A. Lower "in limit" stoppers are not leaning
against the structure at the moment when
the "in limit" sensor detects the magnet;
A. Adjust the sensor position in order
to have contact of the stoppers
against the structure at the time
when the system stops the slide-out
retraction.
Slide-out moves when
vehicle is moving.
A. Inflatable seal not inflated A. Check seal condition and seal air
supply system.
Slide-out retracts or
extends difficultly.
A. Foreign matters accumulated in the linear
bearing;
A. Inspect the linear bearing end
seals to see if they are in good
condition. If not, replace the end
seals and clean the inside of linear
bearing.
Slide-out oscillates
vertically when retracting
or extending
A. Linear bearing balls hardened due to a too
heavy load;
B. Linear bearing mounting bolts loosen;
A. If balls clearance is excessive,
replace linear bearing.
B. Tighten mounting bolts.
Slide-out vibrating or noisy
when extending or
retracting
A. Acetal plastic block rubbing against the
slide-out structure;
B. Worn-out anti-friction coating on wiper
seal around slide-out;
C. Lower acetal plastic block rubbing
against rail;
A. Realign acetal plastic block.
B. Replace wiper seal.
C. Remove lower acetal plastic block
and machine down 1mm (0.039").

PREVOST LE MIRAGE XLII BUS SHELLS Specifications

General

Brand	PREVOST
Model	LE MIRAGE XLII BUS SHELLS
Category	Buses
Language	English