311-0288-281 Rev. A 2/13
© 2013 Hopkins Manufacturing Corporation
9
WARNING
Using large or longer screws may damage unit
1. Install Vacuum Pump under the hood by the brake booster using wire
ties. Make sure the vacuum pump is mounted away from high heat areas
and moving parts.
2. Route Red Wire from Break-Away Harness to Vacuum Pump Wire
Harness Red Wire supplied in (D).
3. Connect Red Wire from Vacuum Pump Wire Harness to positive (+)
terminal on vacuum pump.
4. Take White wire from Vacuum Pump Harness, connect to negative (-)
terminal on vacuum pump and ground other end on vehicle frame.
5. Determine the size of vacuum line coming out of the brake booster
system. 1 ⁄4”, 1 ⁄2” and 3/8” vacuum line and check valves are supplied
with (D).
6. Select position for check valve. Check valve goes between the vacuum
boost and engine.
7. Cut vacuum line and insert check valve with the left side of the check
valve going to the towed vehicle vacuum line and the right side going
into the brake booster line.
8. Insert vacuum line provided in (D) into the bottom on the check valve
and then connect to vacuum pump.
STEP 11: INSTAll VACUUm PUmP (d)
arrow on check
valve points
towards the engine
1/4” rubber
vacuum hose
towed vehicle
vacuum line
to power
brake booster
1/4” vacuum line
from Stealth
TO ENGINE
minimum
1-1/2”
1. Take Mounting Bracket from (E) and select a secure mounting location in the motorhome. Please ensure there is
enough space to access all buttons on Dual Controller.
2. Attach Dual Controller to mounting bracket using hex screws provided.
3. Adjustment Dual Controller to desired angle and tighten screws until snug.
4. Connect wires from Dual Controller to Motorhome wiring under dash as follows:
White Wire = Ground
Blue Wire = Trailer Electric Brakes
Black Wire = Positive/Battery
Red Wire = Brake Light
5. Connect white wire directly to the negative post on the vehicle battery. Grounding to any other location may cause
intermittent controller operation or failure.
6. Attach 20 amp circuit breaker or in-line fuse to the positive terminal on the motorhome’s battery. Route black wire
from the brake control to the fuse or breaker.
7. Splice the red wire into the cold side of the motorhomes stop lamp switch located by the brake pedal. Find the
wire by using a circuit tester and probing for the wire that powers the motorhomes stop lamps when the brake
pedal is pressed.
8. Route the blue wire from the dual controller to the motorhome side towing connector at the rear of the motorhome.
STEP 12: INSTAll dUAl CoNTRollER IN moToRHomE (E)
WARNING
Wires may vary by manufacturer, please wire by function only.
Figure 9
