Test the system
6
Test the BrakeMaster system, as described below,
each time
before towing.
Since this section is also a list of each connection step
in sequence, you can use it as a quick reference checklist,
once you understand how to connect and operate your
BrakeMaster. (For more detailed connection information,
refer to the appropriate step under “Operation.”)
CAUTION
Always release the stored vacuum in the towed
vehicle’s power brake system before towing — pump
the brake pedal several times.
Depending on the make and model of the towed
vehicle, it may be necessary to pump the brake pedal
repeatedly to release the vacuum.
If the vacuum is not released, the supplemental
braking system will apply excessive braking force
when it is activated, which will cause severe tire and/
or brake system damage to the towed vehicle.
1.
First, connect the tow bar to the motorhome and the
towed vehicle.
2.
Then, according to the manufacturer, make all adjust-
ments necessary to prepare the vehicle for towing.
These adjustments may include: turning the ignition
key to the ‘tow’ position; pulling fuses; disconnecting the
battery; and setting the transmission to a particular gear
or in a particular sequence.
Refer to the owner’s manual, or call the dealership for
vehicle-specific information.
CAUTION
To prevent the towed vehicle from rolling, connect
the tow bar to both vehicles before shifting the towed
vehicle’s transmission into the proper gear for tow-
ing.
3.
Release the towed vehicle’s emergency brake.
4.
Next, connect all components of the braking system —
•
Attach the air cylinder to the brake pedal and mounting
post (or seat adaptor bracket).
•
Connect the male quick coupler from the air cylinder
to the female quick coupler mounted in the driver’s side
of the passenger compartment.
•
Connect the patch cord between the two vehicles —
both the air line quick couplers and the motorhome moni-
tor bullet connectors.
•
Clip one end of the steel break away cable to the break
away pin; clip the other end of the cable to the rear of the
motorhome, close to the center.
5. For motorhomes with hydraulic brakes
(BrakeMas-
ter 9060) — turn the motorhome engine on, and leave it
running.
For motorhomes with air or air over hydraulic
brakes
(BrakeMaster 9100 and 9160) — block the motor-
home wheels and turn the motorhome engine on. After
the air compressor is completely charged, release the
parking brake.
6.
Confirm the proper operation of the braking system:
depress and hold the motorhome brake pedal down.
At the towed vehicle, the air cylinder shaft and pedal
clamp will extend.
Then, release the brake pedal. The air cylinder shaft
and pedal clamp will retract.
7.
Confirm that the motorhome monitor LED is functioning
properly: the LED will turn on as the motorhome brake
pedal is depressed, and turn off when the brake pedal is
released.
CAUTION
If the LED does not turn on and off as described
above, identify the cause and correct it before us-
ing the supplemental braking system. Refer to the
Troubleshooting section for possible causes.
The LED is the only indication of braking activity at
the motorhome. Severe damage to the towed vehicle
can occur if the driver of the motorhome is unaware
that the supplemental braking system is not function-
ing properly.
8.
Charge the break away air reservoir —
Note: the BrakeAway system is included with the
BrakeMaster 9060 and 9160; it is an optional accessory
for the 9100.
For motorhomes with air or air over hydraulic
brakes
(BrakeMaster 9100 and 9160) — with the motor-
home engine on, the air compressor completely charged
and the parking brake released, depress the brake pedal
for 15 seconds — apply firm pressure.
For motorhomes with hydraulic brakes
(Brake Mas-
ter 9060) — Start the motorhome and allow the air com-
pressor to run until it shuts off. Then apply the motorhome
brakes and hold the brake pedal down.
The break away air reservoir must be charged,
as described above, every time the motorhome and
towed vehicle are connected. If the air reservoir is
not charged, the break away system will not apply
braking pressure if the towed vehicle separates from
the motorhome, which may cause property damage,
personal injury or even death.
9.
Periodically, confirm the proper operation of the break
away system —
Remove the break away pin at the front of the break
away switch. The air cylinder and pedal clamp will ex-
tend.
To retract the air cylinder and pedal clamp, reconnect
the break away pin.
Before towing, charge the break away air reservoir, as
described in step 8 above.
10.
Confirm the proper operation of the towed vehicle’s
brake lights and turn signals —
•
Depress the motorhome brake pedal; confirm that
continued on next page
Содержание BrakeMaster 9060
Страница 1: ......
