Owners manual
BX4375
Ascent Tow Bar
Operation Manual & Installation Instructions
405-0637 Rev A Page 3 of 7 11/7/17
1. Slide the hitch connector into the receiver tube of your towing vehicle hitch. Install the receiver pin
provided into one of the two holes of the hitch receiver. The inside hole of the receiver tube is most
commonly used. Blue Ox offers receiver and tow bar lock sets (BX88101 & BX88177) that help
prevent theft. Contact Blue Ox for more information.
NOTE: The conguration of the rear of your towing vehicle will determine how far you can slide
the hitch connector into the receiver tube. Later, when the tow bar is folded, you may need to
change which set of holes are used in the hitch connector or order a longer hitch connector.
Tow Bar Installation
1. Position the towing vehicle on a level surface with a straight driveway ahead and engage the
parking brake. Position the towed vehicle behind the towing vehicle in the approximate towing
position.
2. Partially extend one leg. The legs are held in with an internal “soft” latch. Pulling out on the leg
will disengage this latch. Place the triple lug between the attachment tabs on the baseplate, and
secure with the 1/2” pin and quick pin. Be sure the 1/2” pin is installed correctly through the
attachment tab with the nose towards middle of the baseplate. Repeat for both legs.
3. On the towed vehicle, disengage the parking brake and set up the transmission for towing and
unlock the steering wheel. Pull forward with the towing vehicle until one or both of the locking
handles are engaged and locked (When locked they will “pop” up). If only one locking handle is
locked, turn the towed vehicle’s steering wheel towards the unlocked tow bar leg approximately
1/2 to 3/4 turn, before continuing forward. Drive the towing vehicle forward until the second leg
locks into place.
Hooking Up to Towed Vehicle
CAUTION: It is important that the attachment
points at the center of the attachment tabs and the
center of the coach's hitch receiver should be of
equal distance. If a deviation must occur, then it is
recommended that the hitch receiver be no more
than 3” above or below the attachment tabs of the
baseplate.
3”
3”
Note: In some situations extra length may be required from the tow bar receiver to the towing
vehicle’s receiver hitch to achieve sufcient clearances. However, Blue Ox only approves two
or less connection points between the towing and towed vehicle, with a length no greater than
12” (hitch pin to hitch pin) on the extension/drop receiver.
Example: Having a tow bar, drop receiver, and hitch extender is NOT recommended as it
exceeds the maximum two points of connection.
Using your Blue Ox tow bar system with extensions that include more than two connection
points or a length greater than 12”(hitch pin to hitch pin), or in any other manner that is con-
trary to or otherwise not consistent with the recommendations, approvals or policies of Blue
Ox, constitutes a dangerous misuse of the product and will void any and all warranties on the
product both express and implied.