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GetTing Started

Warning

The Atlas III is designed to be used in trailer applications only with a trailer tongue weight which 

does not 

exceed 12,000 lbs (per jack leg). 

Any other use of this product is prohibited. Stillwell, Inc. will not be re-

sponsible for damages resulting from improper use, installation or care of this product.

The Atlas III does not include a mounting plate (unless purchased as an option). It has been designed to be 
welded on any location one inch from the glide bearings or top of its outermost square steel tube. Please 
see the “Welding Operations” section of this guide for more information about attaching the Atlas III to your 
trailer.

The Atlas III is designed to be used in trailer applications only. Any other use of this product is prohibited. 
Stillwell Jacks will not be responsible for damages resulting from improper use, installation or care of this 
product.

How to connect battery Cables

Bleeding Procedure

Connect Negative (-) battery 

cable to this terminal using 

the included nut and washer

Hand tighten, do not over torque

Connect Positive (+) battery 

cable to this terminal using 

the included nut and washer

Hand tighten, do not over torque

Recommended Fluid: ATF Dexron III or comparable ATF (Approximately 1 Gallon Needed)

• Start with jack completely retracted (fill reservoir)

• Extend 1/4 of the stroke, retract completely (check fluid and fill if necessary)

• Extend 1/2 of the stroke, retract completely (check fluid and fill if necessary)

• Extend 3/4 of the stroke, retract completely (check fluid and fill if necessary)

• Extend completely, retract to standard resting height

Tools Needed:

10mm wrench or 

socket

Parts Needed:

2 x Battery Cable 

with 1/4” terminal

*Only add fluid when jack is retracted*

*For best results use 12V Deep Cycle Marine Battery*

(612) 248-1110 | STILLWELLJACKS.COM

Bolting Jack to Trailer

The minimum requirement for bolting the Vaquero to the trailer is Grade 5 bolts. 

Grade 5 bolts are hardened to increase strength and the most common bolts found in 

automotive applications. Grade 5 bolts have 3 evenly spaced radial lines on the head.

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