Section 23: ACCESSORIES
PA1562
13
FIGURE 18: HUBODOMETER 23024
3.2 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.
3.3 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.
3.4 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).
4. COLD STARTING AID (ETHER)
If the vehicle is equipped with a DDEC Series 60
engine, an electrically-operated type ether cold
starting aid designed to ease engine starting
when temperature is low may be installed.
On vehicles equipped with cold starting aid, the
system consists of the main following parts:
• Ether starting aid switch
• Ether cylinder
• Solenoid valve (24 V)
• Thermal cutout valve
• Atomizer
The control rocker switch is located on the
dashboard. This switch is provided with a
locking mechanism to avoid accidental use
when engine is running. To activate the ether
starting aid, proceed as follows:
1. Prior to cranking engine, press down rocker
switch for three seconds to fill solenoid
valve.
2. Release switch to discharge shot.
3. Allow three seconds for shot to discharge.
4. Start engine, use additional shots if
necessary to keep engine running.
CAUTION
This practice should be performed only when
absolutely necessary. Excessive use of fluid
could result in serious engine damage.
The ether cylinder and solenoid valve assembly
are mounted on the engine compartment wall
and are accessible from the engine
compartment R.H. side door.
The thermal cutout valve is mounted on the
engine (radiator side). Its function is to prevent
discharge of ether when engine is warm (over
90°F (32°C)). The atomizer is installed on top of
the air intake duct (Fig. 19).
FIGURE 19: ENGINE 23032
4.1 PREVENTIVE MAINTENANCE
During the summer months, remove cylinder to
avoid high temperature actuation of the cylinder
safety relief device. Always screw valve cap into
solenoid valve opening to prevent entrance of
road dirt. When removing cylinder, be careful to
prevent dirt from entering the valve.
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