ESC-10858 - Esco

ESCO Equipment Supply Company 

OPERATOR’S MANUAL 

10858 

20 TON HIGH PROFILE 

HYDRAULIC BOTTLE JACKS 

1 

15270 Flight Path Drive • Brooksville, FL 34604 

www.esco.net • sales@esco.net 

Phone (352) 754-1117 • Toll Free (800) 352-9852 US, Canada & Caribbean ONLY • Fax (352) 754-4508


Specifications 

Lifting-capacity Lifting-height Max-height Min-height Gross-weight Net-weight Package size 

20 Ton 6.3” 17” 10.6” 31 lbs. 29 lbs 9.4” x 6.7” x 12.6” 

WARNING 

• This is a lifting device ONLY. Do NOT move or dolly the vehicle while on the jack. 

• Position this jack to ONLY lift on the areas of the vehicle as specified by the vehicle 

manufacturer. 

• After lifting the vehicle, ALWAYS support the load with appropriately rated vehicle 

support stands BEFORE working on the vehicle. 

• Do NOT overload this jack beyond its rated capacity. Overloading can cause damage 

to or failure of the jack. 

• This jack is designed ONLY for use on hard level surfaces capable of sustaining the 

load. Use on other than hard level surfaces can result in jack instability and possible 

loss of load. 

• Center load on jack saddle BEFORE lifting vehicle. Off-center loads and loads lifted 

when the jack is not level can cause loss of load or damage to the jack. 

• Read, study, understand and follow all warnings and operating instructions prior to 

use. 

• Failure to heed these warning may result in loss of load, damage to the jack and/or 

jack failure resulting in personal injury or property damage. 

• Do not go under or allow anyone under the vehicle until it has been supported with 

jack stands. 

• No alterations shall be made to the jack. 

Because of the potential hazards associated with the misuses of equipment of this type, 

no alterations shall be made to the product. 

Inspection 

The product shall be maintained in accordance with the product instructions. No 

alterations shall be made to this product. 

1. Before use, a visual inspection of the jack should be made for abnormal conditions 

such as cracked welds, bent, worn, loose or missing parts, or hydraulic leaks. 

2. The product shall be inspected immediately if the jack is believed to have been 

subject to an abnormal load or shock. It is recommended that the inspection is made 

by an authorized repair technician prior to use. 



Phone (352) 754-1117 • Toll Free (800) 352-9852 US, Canada & Caribbean ONLY • Fax (352) 754-4508 

2


Operation 

IMPORTANT: Sometimes during shipping and handling, air gets into the hydraulic 

system, causing poor lifting performance. Before initial operation, use the notched end of 

the provided handle to engage and open the release valve counterclockwise for no more 

than 1/2 full turn. With ram fully retracted, locate and remove the oil filler plug. Insert the 

handle into the handle sleeve, then pump 6 to 8 strokes. This will help release and 

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 and close the release valve. 

The owner and/or operator is responsible for providing maintenance, maintaining all 

decals or warning labels and while in use, maintaining the unit in good working order. If 

the owner and/or operator is not fluent in English or French, the product warnings and 

instructions shall be read and discussed with the operator in the operator’s native 

language by the purchaser/owner or his designee. Make sure that the operator 

comprehends its contents. Safety information shall be emphasized and understood prior 

to usage. The jack shall be inspected per the instruction manual prior to use. 

It is the owner and /or operator’s responsibility to study all warnings, operating and 

maintenance instructions contained on the product label and instruction manual prior to 

operation of this unit. Retain these instructions for future reference. 

Raising vehicle: 

1. Make sure the jack and vehicle are on a hard level surface, 

2. Always set the vehicle parking brake and block the wheels. 

3. Consult the vehicle owner’s manual to ascertain the location of jack points and 

position the jack beneath the prescribed lift point. 

4. Close the release valve by turning it clockwise with the provided handle until it is 

firmly closed. DO NOT OVER TIGHTEN. 

5. Insert and secure handle into the handle sleeve. Pump handle until saddle contacts 

load. 

6. Raise load to the desired height, then immediately transfer the load to an 

appropriately rated support devices such as jack stands. 

7. Turn release valve SLOWLY counter clockwise to lower load onto jack stands. 

Lowering vehicle: 

1. Raise load enough to carefully remove jack stands. 

2. Insert handle onto release valve and slowly turn handle counterclockwise, but no 

more than 1/2 turn. 

3. If load fails to lower, carefully transfer the load to another lifting device and jack 

stands, then do the above two steps. 

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4. After removing jack from under the load, push ram and handle sleeve down to reduce 

exposure to rust and contamination. 

5. Maintenance 

Monthly maintenance is recommended. Lubrication is important to jack as they support 

heavy loads. Any restriction due to dirt, rust, etc, can cause either slow movement or 

extremely rapid jerks, damaging the internal components. The following steps designed 

to keep the jack well lubricated. 

1. Lubricate the ram, linkages, saddle and pump mechanism with light oil. 

2. Visually inspect for cracked welds, bent, loose, missing parts or hydraulic leaks. 

3. If the jack is subjected to an abnormal load or shock, remove from service and have it 

examined by an authorized repair technician prior to use. 

4. Clean all surfaces and maintain all labels and warnings. 

5. Check and maintain the ram oil level. Check ram every 3 months for any sign of rust 

or corrosion. Clean as needed and wipe with an oil cloth. 

Always store the jack in a fully lowered position .This will help protect critical areas 

from excessive corrosion. 

Do not use brake or transmission fluids or regular motor oil as they can damage the seals. 

Always purchase and use products labeled hydraulic jack oil. 

Adding oil 

1. With saddle fully lowered and pump piston fully depressed, set jack in its upright, 

level position. Remove oil filler plug. 

2. Fill until oil is level with the filler plug hole, reinstall oil filler plug. 

Changing oil 

For best performance and longest life, replace the complete fluid supply at least once per 

year. 

1. With saddle fully lowered and pump piston fully depressed, remove the oil filler plug. 

2. Lay the jack on its side and drain the fluid into a suitable container. 

3. Fill with good quality jack oil. Reinstall oil filler plug. 

Lubrication 

Occasionally lubricate the handle socket pivot point, extension screw and release screw 

thread to prevent corrosion. 



Phone (352) 754-1117 • Toll Free (800) 352-9852 US, Canada & Caribbean ONLY • Fax (352) 754-4508 

4


Troubleshooting 

Problem Possible cause Solution 

Jack will not lift 

Jack will lift, but not maintain 

pressure 

Jack can not lower after 

unloading 

Poor lift performance 

Jack can not lift to full 

extension 

·Release valve not tightly closed 

·Overload condition 

·Release valve not tightly closed 

·Overload condition 

·Hydraulic unit malfunction 

·Reservior overfilled 

·Linkages binding 

·Low fluid level 

·Air trapped in system 

·Low fluid level 

·Ensure release valve tightly 

closed 

·Remedy overload condition 

·Ensure release valve tightly 

closed 

·Remedy overall condition 

·Contact service center 

·Drain fluid to proper level 

·Clean and lubricate moving 

parts 

·Ensure proper fluid level 

·With ram fully retracted, 

remove oil filler plug to let 

pressurized air escape, then 

reinstall oil filler plug 

·Ensure proper fluid level 

Factory Service 

Any hydraulic jack found to be damaged in any way is found to be worn or operates 

abnormally, believed to have been subjected to an abnormal load shall be removed from 

service until repaired . Owners and operators should be aware that repair of the 

equipment requires specialized knowledge and facilities. Only factory authorized parts, 

labels and decals shall be used on this equipment. 

Annual inspection of the jack is recommended and should be made by the manufacturers 

or suppliers authorized repair facility to ensure that the jack is in optimum condition. 

5 





Parts List 

Part 

No. 

Description 

Q'ty 

Part 

No. 

Description 

Q'ty 

1 Body 1 23 force 1 

2 safety valve screw 1 30 o-ring* 1 

3 o-ring* 2 31 nylon gasket* 1 

4 safety valve spring 1 32 dustproof ring* 1 

5 ball seat 1 33 pump plunger 1 

6 steel ball 1 34 pin 1 

7 release rod 1 35 pin 3 

8 steel ball 1 36 rod join 1 

9 oil filler plug* 1 37 pin 1 

10 steel ball 1 38 handle socket 1 

11 washer 1 39 rear handle 1 

15 o-ring* 1 40 middle handle 1 

16 sealing washer* 1 41 front handle 1 

18 ram 1 42 steel ball 2 

19 bushing 2 43 spring 2 

20 o-ring* 1 44 copper washer* 2 

21 snap ring 1 45 screw 2 

22 snap ring 1 

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ESC-10858 - Esco

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