PREVOST X3 Commuter Operating Manual Download

Page: 187 / 228

Care and Maintenance 8-13

DOB 1300-1556

PA-1639 Operator's Manual 2020 X3-45 Commuter

FIGURE 20: OVERHEAD COMPARTMENT FAN AIR

FILTER

HOSE INSPECTION

Inspect hoses for leaks regularly to ensure
efficient, economical and safe operation of the
engine and related equipment. Carefully inspect
all fittings, clamps and ties. To prevent chafing,
make sure hoses are not touching shafts,
couplings, heated surfaces, sharp edges or other
parts. Since hose clamps and ties can vibrate
loose or fail over time, frequently inspect and
tighten or replace as necessary.

Correct leaking hoses immediately. Failure to
correct leaks can cause severe damage to the
equipment, as well as increase operating costs
due to lost fluids. Treat fuel and oil leaks as an
immediate fire hazard.

WARNING

Personal injury and property damage may result
from fire caused by leaking flammable fluids.

Hose Service Life

Hoses have a limited service life. Thoroughly
inspect hoses annually. Look for surface damage
or indications of twisted, worn, crimped, cracked
or

leaking

lines.

Replace

damaged

hoses

immediately.

Hoses should be replaced during major overhaul
or after a maximum of seven service years. Be
certain replacement hoses are matching the
original equipment manufacturer's specifications.

LUBRICATION

Grease all lubrication points during scheduled
maintenance. For heavy loads or extended use,

lubricate more often. Refer to the Maintenance
Manual, section 24 for information on lubrication.

WHEELS AND TIRES VERIFICATIONS

Check for loose wheel nuts. Inspect rims for
cracks. Cracks can appear in many places but
typically radiate out from where a load is applied.
Steel wheel nuts should be tightened to 450 to
500 foot-pounds (610 to 680 N.m.) torque.

Keep the tires inflated to the recommended
inflation pressure to prolong tire life and for
safety.

NOTE

For

coaches,

recommended

tire

inflation

pressures are given in the "Coach Final
Record", placed in the technical publications
package supplied with the vehicle. The cold
tire inflation pressures are on the Department
of Transport certification plate located on the
L.H. console besides the driver’s seat. When
special tires are installed by Prevost on a new
vehicle, a special tire inflation chart is added
next to the certification plate.

WARNING

Do not exceed maximum inflation pressure.
Incorrect tire pressure increases tire wear and
could lead to loss of driving control because of
reduced road handling. Check tire pressure
regularly.

WARNING

If replacement tires are different from those
specified on the certification plate, pressure must
be

adjusted

following

manufacturer

recommendations.

WHEEL BEARINGS

Check wheel bearing cover for overheating
(especially after using the service brakes) during
fuel stops by touching the wheel bearing cover.

SERVICE BRAKE TEST

Check for correct pressure build-up. Stop engine
and check pressure gauge. Pressure loss should
not exceed 3 psi/min (21 kPa/min) with engine