Blue Ox BRK4000 - Manual (Page 3)

BRK4000
Push Cylinder BrakeSafe™
Installation Instructions
405-0312 Rev A Page 3 of 6 9/27/13
3/8” Tubing Installation On Coach
3. Push the supplied 3/8” DOT tubing into the tee fitting or the pipe to tube fitting making sure it is bottomed
into the port. Route and secure the 3/8” DOT tubing making sure to route away from hot parts. Once you
get to the rear of the coach with the tubing, secure the Coach Mounting Bracket with 1/4”-20 x 1-1/4” bolts
and 1/4”-20 lock nuts in a convenient location on the bumper. Then mount the bulkhead fitting, 3/8 tube
fitting, and QD coupler to this mount bracket as shown in Figure 3. Cut the extra 3/8” DOT tubing off and
then push into the pipe to tube fitting.
1/4” Tubing Installation On Towed
4. Mount the Towed Vehicle Bracket with the 1/4”-20 x 1-1/4” bolts and 1/4”-20 lock nuts to the towed vehicle
in a convenient and secure location. Then mount the QD plug and 1/4” bulkhead to this bracket. Route the
1/4” tubing thru the driver side engine compartment making sure not to run tubing along hot parts. Push
tubing thru an existing grommet in the firewall. If there isn’t a hole, drill a new hole and install a grommet.
Continue routing the tubing behind driver side kick panel, then under the door sill molding. End the routing
under the driver seat, making sure to leave enough to hook-up to the push cylinder. Cut any excess off.
Self-Coil Hose
Male QD Fitting
Coach Mounting Bracket
Towed Vehicle Mounting Bracket
Female QD Coupler
Towards Coach
3/8" Tubing
Towards Towed Vehicle
1/4" Tubing
Figure 3