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KJ4000S/T User Manual 

Page 2 

KJ4000S/T User Manual

 Page 3 

 

 

 

This jack is designed for   

 

 

 

lifting purposes only. 

After jacking, always use safety stands to 
support load before making any repairs. For 
your safety, do not overload beyond rated 
capacity and do not adjust safety valve.
 

 

 

 

 

 

1.   The chassis brackets are suitable for 
 

AL-KO caravan chassis manufactured    

 

after 1992 that have pre-drilled mounting  

 

holes already on the chassis.

2.  The chassis brackets should be mounted,  
 

behind the axles on both sides. The  

 

 

brackets are marked ‘OFF-SIDE’ for  

 

 

installation on the ‘driver’s’ side of  

 

 

the caravan when hitched and 

 

‘NEAR-SIDE’ for installation on the door  

 

side (UK) of the caravan. The brackets can  

 

be installed onto continental caravans by  

 

reversing the brackets.

3.  2 sets of bolts, washers and nylock  

 

 

nuts are supplied for fixing the   

 

 

brackets onto both sides of the caravan.

4.  Please refer to Diagram A. 
 

Working on the outside of the chassis    

 

face, line-up the holes on one of the  

 

 

outer brackets (6) with the pre-drilled    

 

chassis holes and insert the bolts with 

 

washers through the apertures. For  

 

 

KJ4000T only: Locate one of the inner    

 

brackets (7) over the ends of the bolts    

 

onto the inside face of the chassis. 

 

Note: The bolt heads and washers  

 

 

must be on the outside of the chassis    

 

with the nylock nuts on the inside. 

5.  Screw on the nylock nuts and tighten    
 

securely. Ensure that the brackets  

 

 

are, as close as possible, at 90° degrees  

 

to the horizontal floor of the caravan.    

 

Careful fitting at this stage, ensures that  

 

the spirit levels will give a true reading to  

 

aid accurate levelling.

6.  Repeat the procedure to fit the remaining  
 

bracket(s) to the opposite side.  

 

 

Ensure that the bolts are sufficiently  

 

 

tightened up to 86Nm.

1.  The inclusion of 2 spirit level vials per    
 

bracket (one for the length of the  

 

 

caravan and one for width) provides  

 

 

the caravanner with accurate guidance 

 

in determining and adjusting the level 

 

of the caravan.

2.  With the aid of the easy to use  hydraulic  
 

jack, the level of the caravan can be  

 

 

adjusted simply and chocked accordingly  

 

with suitable platforms.

1.  Before jacking, the caravan must be  

 

 

attached to the towing vehicle and the    

 

handbrake must be applied on both  

 

 

the caravan and the vehicle.

2.  Chock the caravan wheels (back & front) 
 

on the opposite side to the wheels to    

 

be lifted/changed. Place the jack  

 

 

in-line with the bracket on the side of the  

 

caravan to be raised. If the ground  

 

 

surface is soft, a board, plank or similar   

 

should be placed underneath the jack.

 
 

 

Only use the jack on a flat, hard    

 

 

surface.

 

 

Gloves should be used to avoid    

 

 

hand injury.

3.   Tighten release valve on base of jack    
 

by turning the valve (4) clockwise, 

 

do not overtighten.

4.  Insert the operating handle (5) into the    
 

handle socket (1) and pump the handle 

 

up and down until the slotted saddle (2)  

 

is aligned with the base of the chassis    

 

bracket (6).                                      

5.  Once correctly aligned, continue to pump  
 

handle to raise the caravan to the 

 

required height. Use smooth, full strokes  

 

for best results.

6.  To lower the caravan, remove the handle  
 

(5) from the handle socket (1), then use the  

 

notched end of the handle to turn the    

 

release valve (4), 

carefully and slowly,

 

anti-clockwise - 

no more than one full   

 

turn. 

 

 

      

Chassis Bracket Installation

General Safety

1.   Read ALL of this User manual and 

become familiar with the product’s 
application, limitations and possible 
hazards.

2.   
  

 

 

These symbols identify important safety  

 

precautions. They mean CAUTION! 

 

WARNING! SAFETY FIRST!

3.   Keep work area clean and free from 

obstruction.

4.   Keep children at a safe distance of 

apparatus whilst in operation.

5.   Only use adapters and accessories that 

are supplied or recommended by the 
manufacturer.

6.    Keep the apparatus clean and in good 

operating condition. 

7.  Inspect the bottle jack each time you    
 

use it. Ensure that there are no loose,    

 

bent or missing parts. 

Never attempt to  

 

use the jack if it is in any way defective.

8.   Do not operate the jack if you are under 

the influence of drugs, alcohol or any 
medication that could impair your ability to 
use the equipment safely.

Important Safety Instructions
Read this User Manual carefully before use. Failure to comply with 
these rules could result in serious injury or damage to property.

Installation & Operation

Product Identification

Hydraulic Jack Operation

1.   Handle Socket
2.  Slotted Saddle
3.  Oil Filler Plug
4.  Release Valve
5.  3-Piece Handle
6.  Outer Brackets x 2
7.  Inner Brackets x 2
 

(KJ4000T only)

8.  Bracket Fixings
9.  Spirit Levels
10.  Lifting Arm
11.   Pump

Levelling Aid

Diagram A.

Inner Bracket 
(KJ4000T only)

Outer Bracket

Chassis

Note: The KJ4000S is only supplied with one pair of 
Outer Brackets (6). 

1

2

4

5

7

6

8

9

10

11

3

Oil filler plug on 
rear of bottle jack

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