Esco 10439, Operating Instructions & Parts Manual

PRODUCT DESCRIPTION

ESCO 

Air Actuated Hydraulic Bottle Jack is designed for lifting, but not sustaining, load ranging up to 44 tons 

(10434).  It can be used vertically or angled to 5 degrees from vertical position.  After lifting, loads must be 
immediately supported by appropriate means.  This model(10434) is equipped with a 3-position handle lock to 
aid in proper saddle/lift point alignment.  To further aid positioning, 10434 is equipped with large rubber, pivot 
wheels.  This jack is 

not recommended 

for use in lifting or positioning houses and/or other building structures.  

This jack comply with applicable 

ASME / ANSI 

Standards.  Ensure that your air source can dedicate 7.8 CFM @ 

120 - 200 PSI to each jack operated.  To ensure dependable, troublefree operation an air dryer and oiler is 
recommended. 

SPECIFICATIONS

Model

Capacity  Jack Size( L 

x W)

Min. Height 

Max. Height 

10439 44 

Ton

 23" 

x 

14 1/2" 

9 ¼” 

16 

¼” 

Figure 1 - Model 10439 Nomenclature                       

BEFORE USE

1.Verffy that the product and the application are 
compatible, if in doubt call 

~ESCO 

Technical 

Service (800) 352-9852, (352) 754-1117. 
2.Before using this product, read the ~owner's 
manual completely and familiarize yourself 
thoroughly with the product and the hazards 
associated with it's improper use. 
3.Open the release valve. (counter-clockwise 
no more than 2 full turns) 
4.With ram fully retracted, locate and remove 
the oil filler plug. This will help release any 
pressurized air which may be trapped within the 
reservoir. Ensure the oil level is just below the 
oil filler plug hole. Reinstall the oil filler plug. 
5. Inspect before use.  Do not use if broken 
cracked or damaged parts are noted. 
6.  Pour a teaspoon of good quality, air tool 
lubricant into the air supply inlet of the lift 
control valve. (See Illustration) Connect to air 
supply and operate for 3 seconds to evenly 
distribute 

7. 

Check to ensure that jack rolls freely (if so equipped) and that the air pump operates smoothly before putting 

into service.  Replace worn or damaged parts and assemblies with 

ESCO 

Authorized Replacement Parts only. 

8. 

This product is fitted to accept the popular ¼” NPT air nipple.  When installing 1/4" NPT nipple of your 

choice, ensure that thread tape or compound is used when servicing connections.