PREVOST X3-45 COMMUTER User Manual

SECTION 09: PROPELLER SHAFT
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual (Draft Version – April 2020)
5
3. NYCT PROPELLER SHAFT
MAINTENANCE DIRECTIVE
WARNING
NYCT MAINTENANCE DIRECTIVE
PROHIBITS REUSE OF PROPELLER SHAFT
COLD FORMED BEARING RETAINERS AND
BOLTS OR STAMPED STRAPS AND STRAP
BOLTS
FIGURE 2: COLD FORMED BEARING RETAINER AND
BOLTS AS USED ON PREVOST X3-45 COMMUTER
DO NOT reuse
cold formed bearing
retainers and bolts. Reuse of bearing retainer
and bolts can cause
driveline failure, which
can result in separation of the driveline from
the vehicle.
a) Before removing the driveshaft from
vehicle, inspect all components
(universal joints, slip joints, hardware,
etc.) for deterioration (rust or corrosion)
or excessive play. If all components
pass inspection, grease universal joints
until they are properly lubricated (fresh
grease showing at all u-joint end caps).
If any component does not accept
grease, it must be replaced.
b) Replace splined slip joint if seal is
damaged or if welch plug (cap) is
missing (when applicable).
c) Unless the slip section (joint) is being
replaced, the driveshaft must be
removed as an assembly. The driveshaft
must be completely disconnected from
the differential and transmission yokes
only; the slip section must not be
disconnected unless it is being replaced.
d) The driveshaft and yokes must be
marked (phasing marks) (see paragraph
4.3 MARK PROPELLER SHAFT
(PHASING MARKS)) before removal to
ensure reinstallation in the same
position as removed.
e) All universal joints securing hardware
(bearing retainers and bearing
retainers bolts, spring tabs and bolts)
must be removed and replaced using
new OEM specified replacement parts
(FIGURE 1).
f) When removing the universal joint from
the yoke, the end caps must remain
attached to the cross at all times if the
universal joint is to be reused (Electrical
or masking tape can be used to keep
the end caps in place while driveshaft is
removed.)
g) Unless the universal joint is being
replaced, universal joint end caps must
not be removed for any reason. If the
end caps become dislodged while the
driveshaft is removed from the vehicle,
the universal joint must be replaced. If
replacement is needed, the universal
joint must be replaced as a complete
assembly.
h) Universal joints must be treated as a
single unit. This means that parts (such
as the cross, needle bearings, or end
caps) must not be interchanged
between new and used joints.
i) Universal joints must be positioned
and seated correctly between the
yoke tabs (ears) on the input (tail shaft
side) and carrier (differential side) yokes
().
j) The driveshaft must be installed facing
the correct direction, in particular, with
respect to the splined slip joint.
k) The driveshaft must be phased correctly.
l) All fasteners must be torqued to
manufacturer's specifications and
torque-marked. DO NOT use air or
power tools to install and torque bolts or
fasteners.
m) Bolt locking tabs, if used, must be bent
over the flats of the bolts after final
torque is checked.

PREVOST X3-45 COMMUTER Specifications

General

Engine	Volvo D13
Transmission	Allison B500
Fuel Type	Diesel
Length	45 ft (13.7 m)
Width	102 in (2.6 m)
Horsepower	500 hp
GVWR	54, 000 lbs
Height	141 in