How Does Manual Raise/Lower of Atlas IV Vaquero Self-Contained Hydraulic Trailer Jack # ST45FR Work
Updated 05/20/2026 | Published 05/18/2026
Question:
ST45FR How does the manual backup work incase of an electrical failure?
asked by: Andrew D
0
Expert Reply:
Hey Andrew, the manual override raise/lower feature of the Atlas IV Vaquero Self-Contained Hydraulic Trailer Jack # ST45FR works by basically manually cranking the hydraulic pressure in the system to push the inner jack leg up. Then manually lowering is just basically bleeding off the pressure to allow the jack to lower.
On the pump housing is an override port that you would crank to build the pressure and extend the jack.
expert reply by:
Jameson C
0
Product Page this Question was Asked From
Atlas IV Vaquero Self-Contained Hydraulic Trailer Jack - 26" Lift - 10,000 lbs - Bolt-On
- Trailer Jack
- Dump Trailer
- Enclosed Trailer
- 5th Wheel Trailer
- Gooseneck Trailer
- Side-Mount Jacks
- 9001 - 10000 lbs
- Hydraulic Jack
- 26 Inch Lift
- Bolt-On
- With Rectangle Foot
- Stillwell
more information >
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