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Installation Instructions for 79012 
Low Profile Transmission Jack 
1000 lb. Max Capacity 

 

Maximum Height 23

” 

Minimum Height 8.5

” 

 

Warning 

Read all safety warnings and instructions. 
Save all warnings and instructions for future reference. 
Failure to heed these markings may result in personal injury and/or property damage: 
 
1. Study, understand, and follow all instructions before operating this device. 
2. Do not exceed 1000 lb. rated capacity. 
3. Use only on hard, level surfaces. 
4. Adequately support the vehicle before starting repairs. 
5. Use of this product is limited to the removal, installation, and transportation in the lowered position, of transmissions, 
transfer cases, and transaxles. 
6. Do not adjust safety valve. 
7. Wear ANSI-approved safety goggles and heavy-duty work gloves during use. 
8. Keep clear of load while lifting and lowering. 
9. Lower load slowly. 
10. Do not use for aircraft purposes. 
11. Inspect before every use; do not use if parts loose or damaged. 
12. Do not alter the jack or use attachments and/or adapters that are not supplied by the manufacturer. 
13. The warnings, precautions, and instructions discussed in this manual cannot cover all possible conditions and 
situations that may occur. The operator must understand that common sense and caution are factors, which cannot be 
built into this product, but must be supplied by the operator. 
14. The brass components of this product contain lead, a chemical known to the State of California to cause cancer, 
birth defects (or other reproductive harm). (California Health & Safety Code § 25249.5, et seq.) 

Save these instructions! 

Setup 

Read the 

ENTIRE IMPORTANT SAFETY INFORMATION

 section at the beginning of this manual including all text 

under subheadings therein before set up or use of this product. 

WARNING! TO PREVENT SERIOUS INJURY:

 Remove load from the jack before any procedure on this page. 

Note:

 For additional information regarding the parts listed in the following pages, refer to Parts List and Diagram. 

 

Assembly 

1. Connect a Support (41) to each corner of the 
Saddle (32) using a Bolt (39) and Washer (40). 
2. Thread a Wing Nut (37) onto the threaded end of 
the Chain Hook (38) with its wings facing the hook. 
3. Slide a Washer (31) onto the threaded end of the 
Chain Hook. 
4. Insert the threaded end of the Chain Hook 
through the hole on the bracket on the Saddle, as 
shown. 
5. 

Secure the Chain Hook to the Saddle’s bracket 

using Washer (31) and Wing Nut (37).

 

                                         1-800-345-4545   jegs.com

 

Summary of Contents for 79012

Page 1: ...cussed in this manual cannot cover all possible conditions and situations that may occur The operator must understand that common sense and caution are factors which cannot be built into this product but must be supplied by the operator 14 The brass components of this product contain lead a chemical known to the State of California to cause cancer birth defects or other reproductive harm Californi...

Page 2: ...addle up to the transmission to determine where you will need to adjust the Supports All four Supports need to grip and make contact with the transmission 9 After determining where they need to be set loosen the threaded bolts on each Support and adjust it to the proper setting for the transmission Tighten the bolts 10 Raise the unit again to make contact with the transmission making sure all of t...

Page 3: ...air from the system e Reinstall the Oil Filler Plug 5 Wipe dry with a clean cloth Then store the Jack in a safe dry location out of reach of children and other non authorized people Troubleshooting WARNING TO PREVENT SERIOUS INJURY Use caution when troubleshooting malfunctioning jack Stay clear of supported load Completely resolve all problems before use If solutions presented in Troubleshooting g...

Page 4: ... 29 Short Screw Rod 1 9 Washer Ø8 2 30 Nut M12 1 10 Base Assembly 1 31 Washer Ø12 3 11 Hydraulic Pump Unit 1 32 Support 1 12 Long Shaft 1 33 Shaft 1 13 Split Pin 6x45 1 34 Tight Nut M10 1 14 Lifting Arm Assembly 1 35 Shaft 1 15 Long Connecting Rod 2 36 Chain 1 16 Snap Ring c Ø16 6 37 Wing Nut M6 2 17 Shaft 1 38 Hook 1 18 Shaft Sleeve 2 39 Bolt M10x16 8 19 Short Connecting Rod 2 40 Washer Ø10 14 20...

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