PREVOST X3-45 VIP 2017, Owner'S Manual

Page: 121 / 212

Other Features 5-35
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. Lower "in limit" stoppers are not leaning against
the structure at the moment when the "in limit"
sensor detects the magnet; 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. Inflatable seal not inflated Check seal condition and seal air supply
system.
Slide-out
retracts or
extends with
difficultly. Foreign matters accumulated in the linear bearing; 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").