PREVOST LE MIRAGE XLII BUS SHELLS, Руководство по обслуживанию

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Section 26: XLII SLIDE-OUT
PA1564 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").