8717761
4,000 lb 12V DC A-Frame Trailer Jack
V4.0
8
For technical questions call 1-800-665-8685
6. Position the jack to face the towing vehicle or the side. The design of
the vehicle may impair the use of the manual crank (L) based on the
jack’s orientation.
7. Slide a 3/8 in. star washer (M) between the mounting plate and frame at
each bolt hole.
8. Slide a 3/8-16 in. lock washer onto each of the three 3/8-16 in. bolts, then
insert the bolts through the mounting plate, the star washers and A-frame.
9. Secure each bolt with a 3/8-16 in. hex nut. Tighten the bolts with a torque
wrench to between 15 to 20 ft-lb.
10. Unravel the black wire and lay it out along the A-frame to the battery.
Secure the wire with cable ties. Position the cable in a way to protect it
from damage if possible.
11. Connect the wire lead to the battery’s positive terminal (+).
12. Reconnect the batteries ground cable.
13. Press the extend/retract switch (H) to test that the connection is correct
and the jack is working. Also press the LED ON/OFF Switch (C) to confirm
the light is working.
14. Push the foot plate up fully and insert the lock pin (K).
15. Retract the jack.
ADJUST THE BUBBLE LEVEL
The bubble level will require a one-time adjustment once the jack is installed.
The trailer must not be hitched to a towing vehicle during the leveling.
1. Chock the trailer’s wheels to prevent them from rolling.
2. Extend the foot plate (F) and lock it into place with the lock pin (K).
3. Follow either a. or b. based on your situation:
a. Uncouple the trailer’s hitch receiver from the tow vehicle, but do not
remove it yet.
b. Leave jack stands supporting the A-frame in place.
4. Remove the bubble level (H) from the housing. Retain the three screws.
5. Place the bubble level on a flat surface of the trailer. Ensure it will not fall
off during the leveling process.
