SECTION 23: ACCESSORIES
2
DOB 2490-2789 | X3-45 Commuter PA1605 Maintenance Manual (Final Version – Rev.2 April 2016)
1. HUBODOMETER
1.1 DESCRIPTION
A wheel hubodometer (Figure 1) has been
installed on the R.H. side of the drive axle. It
indicates the total distance in miles covered by
the coach since it has left the factory, including
road testing.
FIGURE 1: HUBODOMETER
23024
1.2 OPERATION
The hubodometer is calibrated for a specific
wheel size (diameter). Wheel rotation causes a
mechanism inside the hubodometer to record
distance after a predetermined number of
rotations. The unit should be serviced at a
competent speedometer repair facility.
NOTE
Do not use paint, solvent or thinner on
hubodometer face or on plastic hubcaps. Do
not weld on hubodometer.
1.3 REMOVAL
To remove the unit, remove the two lock nuts
and washers securing it to the wheel hub, and
pull the unit off the studs.
1.4 INSTALLATION
Place the hubodometer unit over the wheel hub
studs. Replace the lock washers and nuts.
Torque stud nuts to 110-165 Lbf-ft·(150-225
Nm).
2. HORN
INSTALLATION
The electric horn is located in a plastic box
under the front stepwell and is accessible from
the front body understructure. Refer to
Operator’s Manual for operation.
FIGURE 2: ELECTRIC HORN INSTALLATION
23420
2.1
ELECTRIC HORN MAINTENANCE
When needed, the electric horn can be serviced
or replaced using the following procedure:
1. Raise vehicle by the jacking points;
2. Unplug the cable connector;
3. Loosen the retaining bolts;
4. Service or replace the defective horn;
5. Reinstall by reversing procedure.
3. WINDSHIELD WIPERS AND WASHERS
3.1 GENERAL
DESCRIPTION
NOTE
When installing a wiper motor, arm or blade,
follow recommended procedures to prevent
misalignment, binding or malfunction. Check
the windshield washer liquid hoses, fittings
and connectors to be sure they are properly
connected and seal with no restriction to the
flow of washer liquid. Check that wiper arms
have the proper sweep position and the
washer nozzles are aimed so that spray is
within the proper wiper pattern.
The windshield wipers are controlled by one
electric wiper motor that is accessible for
maintenance after removing the appropriate
access panel beside the footwell (refer to figure
5).
The wiper/washer control button is located on
the R.H. dashboard panel. Push the button to
activate the windshield washer. Turn the button
to activate the wipers. The first position activates
the wipers intermittently. The second position is
