Blue Ox BX88161 - Manual (Page 3)

Blue Ox Division, Automatic Equipment Mfg. Co. • One Mill Road, Industrial Park
Pender, Nebraska 68047 • Phone 402-385-3051 • Fax 402-385-3360 • www.blueox.us
TM
292-5972 8/06 2 of 11
Push-Cylinder Installation
5. Install the brake pedal arm mount bracket 3/4” above the brake pedal using the 1/4” x 1 1/4”
hex bolts, flat and lockwashers (See Fig. 6). Select a suitable location for the U-channel floor
bracket, preferably as close to the drivers seat as you can go, still being able to reach the brake
pedal. The bracket also needs to be in line with the brake pedal. IMPORTANT NOTE:
Before screwing the two pieces of the push cylinder assembly together, be sure to put the
o-ring in between them. The o-ring will be in the bolt bag. If this is not done, leaking
will occur. Then put in postion on brake pedal arm to get a location for the U-channel. Drill a
7/32” hole for the U-channel to be mounted. Loosen the 1/4” x 3/8” pan head screws and take
out the pivot mount assembly. Bolt the U-channel bracket on the floor with a 1/4” x 1 1/2” hex
head self tap bolt making sure the holes on the sides are towards the front. Replace the pivot
mount assembly with the 1/4” x 3/8” pan head screws. Be sure it pivots freely. Install the
cylinder assembly to the floor bracket by pushing the air coupler on to nipple. You will here a
click when they are attached. The clevis pin is not removed to install or remove the cylinder.
Adjust the length of push cylinder at the adjuster adapter by loosening the adjusting nut and
pull the cylinder assembly in or out to achieve the correct position. Make sure the adjusting
tube doesn’t slide. The total length should be a 1/2” shorter then the total length between the
brackets. Tighten the adjusting nut finger tight, then 2 and a 1/2 turns. This will ensure that
there is spring tension on the brake pedal, so it retracts back to its normal position shutting the
indicator light off in the coach.
Quick Exhaust Installation
6. Before plugging the 1/4” tubing into the elbow fittings, you must put the quick exhaust valve
in-line. Put the quick exhaust valve assembly one foot from the push cylinder by simply cut-
ting the 1/4” tubing with a utility knife. Install the quick exhaust valve, making sure the little
hole is going towards the push cylinder assembly. The brake system will not operate correctly
installing the quick exhaust valve with the hole in the opposite direction. Also make sure the
tubing is pushed in all the way into the quick exhaust fittings. Push the end of the 1/4” tubing
into the cylinder pipe elbow. The door sill molding. End the routing under the driver’s seat,
making sure to leave enough to hook-up to the push cylinder. Cut the excess off.