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Powerful and reliable the YAJ20B is ideal for workshop or roadside use. It takes the effort out of lifting heavy plant, tractors and commercial 
vehicles. See chart below and select an appropriate adaptor:

 

 

 

 Model No 

Spec 1 

Spec 2

 

YAJ20B/12-1 

70mm 

20mm

 

YAJ20B/12-2 

50mm 

20mm

 

YAJ20B/12-3 

50mm 

60mm

 

YAJ20B/12-4 

50mm 

100mm

 

Disconnect jack from air supply before changing parts, servicing or performing any maintenance.

 

WARNING!

 ensure correct air pressure is maintained and not exceeded. 

  Keep air hose away from heat, oil and sharp edges. Check air hose for wear before each use, and ensure that all connections are secure.

  Ensure the jack is in sound condition and good working order. Take action for immediate repair or replacement of damaged parts. 

 

Use genuine parts only. Unauthorised parts may be dangerous and will invalidate the warranty.

 

  Use jack on level and solid ground, preferably concrete. 

Avoid tarmacadam as jack may sink in

.

 

Place wedges under wheels of vehicle (

but ensure that wheels of jack can freely move).

  Ensure the vehicle handbrake is engaged, engine is switched off and transmission is in gear (or “Park” if automatic).

  Ensure minimum distance of 0.5m between vehicle and static objects such as doors, walls, etc., to allow for vehicle tilting.

  Only place jack under those lifting points recommended by vehicle manufacturer 

(see vehicle handbook).

  Check that the jacking point is stable and centred on the jack saddle and is free from grease and oil. 

  Locate the jack in a suitable, well lit work area.

  Keep work area clean and tidy and free from unrelated materials.

  Use a qualified person to maintain or repair the jack’s hydraulic system.

 

DO NOT top up hydraulic system with brake fluid. Use hydraulic jack oil only.

  Ensure there are no passengers in the vehicle.

  Ensure all non-essential persons keep a safe distance whilst the jack is in use.

  Ensure the jack wheels are free to move and that there are no obstructions.

  

DANGER: Use the jack for lifting only, NOT for supporting the lifted load.

  Use suitable capacity axle stands under the vehicle before proceeding with any task.

  

DO NOT allow untrained persons to operate the jack.

 

DO NOT operate the jack if parts are missing or damaged.

 

DO NOT exceed the rated capacity of the jack.

  

DO NOT allow the vehicle to move while supported by the jack, or use the jack to move the vehicle.

  

DO NOT jack the vehicle if there is a risk of spillage of fuel, battery acid, or other dangerous substances.

  

DO NOT work under the vehicle until axle stands have been correctly positioned.

  

DO NOT use the jack for purposes other than that for which it is intended.

  

DO NOT adjust the safety overload valve.

 

DO NOT apply your body weight to the handle during jacking. The handle is only for moving the jack to and from the jacking location.

 

DO NOT yank the hose from the air supply, and DO NOT direct air from the air hose at yourself or others.

  DO NOT use the jack if believed to have been subjected to abnormal load or shock. Inspect and take appropriate action.

  Ensure that there are no persons or obstructions beneath the vehicle before lowering.

  When not in use disconnect jack from the air supply, and store, fully lowered, in a safe, dry, childproof area.

 

WARNING! turn off air supply and de-pressurise the control nozzle before removing the pump unit from any installation or mobile system.

 

Failure to comply with this instruction may damage the unit and will invalidate your warranty.

INSTRUCTIONS FOR:

HEAVY DUTY AIR JACK

Model No: 

YAJ20B.V2

ImpoRtANt: READ THEsE INsTRUCTIoNs CAREfUllY. NoTE THE sAfE oPERATIoNAl REQUIREMENTs, WARNINGs AND CAUTIoNs. 
UsE THIs JACK CoRRECTlY AND WITH CARE foR THE PURPosE foR WHICH IT Is INTENDED. fAIlURE To Do so MAY CAUsE 
DAMAGE AND/oR PERsoNAl INJURY, AND WIll INVAlIDATE THE WARRANTY. RETAIN THEsE INsTRUCTIoNs foR fUTURE UsE.

Thank you for purchasing a Sealey Jack. Manufactured to a high standard this product will, if used according to these instructions 
and properly maintained, give you years of trouble free performance.

1.  sAfETY INsTRUCTIoNs

specification

Max capacity  . . . . . . . . . . . . . . . . . . . . . 20Tons

Min height. . . . . . . . . . . . . . . . . . . . . . . . 205mm
Max height  . . . . . . . . . . . . . . . . . . . . . . . . . . 430
Piston stroke. . . . . . . . . . . . . . . . . . . . . . 120mm
Length incl. handle . . . . . . . . . . . . . . . . 1761mm
Width  . . . . . . . . . . . . . . . . . . . . . . . . . . . 326mm
Working pressure . . . . . . . . . . . . .100psi-140psi
Weight  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40kg
Required air flow  . . . . . . . . . . . . . . . . . . 9.5cfm

3.1.  Ensure the jack pneumatic switch (or trigger) is in the "off" position before connecting to the air supply. 
3.2.  You will require an air pressure of at least 100psi (max 140psi) and an air flow of 9.5cfm to get the best   
 

performance from this jack.  Use a compressor of 3HP or above. 

3.3. 

 

WARNING! 

Ensure the air supply does not exceed 140psi while operating the jack. Too high an air   

 

pressure and unclean air will shorten the products life due to excessive wear, and may be dangerous   

 

causing possible damage and personal injury.

3.4.  Keep the air hose between the compressor and the air jack as short as possible, and install an air filter   
 

and oiler (fig 1).

3.5.  Drain the air tank daily. Water in the air line will damage the jack.
3.6.  Clean the air inlet filter screen weekly. 

3. AIR sUPPlY

2.  INTRoDUCTIoN AND sPECIfICATIoN

fig.1.

Original Language Version 

YAJ20B.V2    Issue No.

2

 - 29/07/10

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