Purpleline kojack TWIN AXLE Assembly instructions

Hydraulic Caravan Jack
PRODUCT CODE: KJ4000T
TWIN AXLE
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www.purpleline.co.uk
01473 601200
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KJ4000T-UM-0621
TWIN AXLE CARAVAN LIFTING & LEVELLING SYSTEM
Installation guide and user manual
*REGISTRATION MUST BE COMPLETED WITHIN 14 DAYS OF PURCHASE
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kojack®
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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
8. Bracket Fixings
9. Spirit Levels
10. Lifting Arm
11. Pump
CAUTION!
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.
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 scissor 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 inuence of drugs, alcohol or any
medication that could impair your ability to
use the equipment safely.
CAUTION!
GENERAL SAFETY
PARTS IDENTIFICATION
KJ4000T User Manual Page 2 KJ4000T User Manual Page 3

KJ4000T User Manual Page 3
1. The inclusion of 2 spirit level vials per bracket (9) (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.
3. Tighten release valve on base of jack by turning the valve (4) clockwise, do not over-tighten.
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 (6/7).
CAUTION!
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. 2 sets of bolts, washers and
nylock nuts are supplied for xing the brackets onto both sides of the caravan.
3. Please refer to Diagram A. Working on the outside of the chassis face, line-up the holes on one of the
outer brackets (6) and inner brackets (7) with the pre-drilled chassis holes and insert the bolts with washer
through the apertures. Note: The bolt heads and washers must be on the outside of the chassis with the
nylock nuts on the inside.
4. Screw on the nylock nuts and tighten securely. Ensure that the brackets are, as close as possible, at 90°
degrees to the horizontal oor of the caravan. Careful tting at the stage, ensures that the spirit levels will
give a true reading to aid accurate levelling.
5. Repeat the procedure to t the remaining brackets to the opposite side. Ensure that the bolts are
suciently tightened up to 86Nm.
Only use the jack on a at, hard surface.
Gloves should be used to avoid hand injury.
INSTALLATION & OPERATION
CHASSIS BRACKET INSTALLATION
LEVELLING AID
HYDRAULIC JACK OPERATION

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.
NOTE: Jack can be extended further by unscrewing the slotted saddle (2). This needs to be extended before
operation if additional height is required.
CAUTION! Do not raise the caravan more than necessary; only raise until
the wheel is suciently clear of the ground.
Do not lie underneath the caravan whilst it is jacked up as this
could result in serious injury.
1. Do not totally unscrew and remove the Release Valve (4) as this may unseat the rubber seal from the bot-
tom of the housing.
2. When not in use the lifting arm (10) and pump (11) should be in the lowest position.
3. Keep pivot points well lubricated.
4. Change hydraulic oil at least once a year.
5. To check oil level:
a. With the lifting arm (10) in the lowest position, remove oil ller plug (3) on rear of body.
b. With jack upright, the oil should be level with the bottom of the ll hole.
c. If necessary, ll reservoir until level with the oil ller plug hole. Fill with high quality hydraulic jack
oil only. DO NOT use brake uid, transmission oil or turbine oil.
d. Reinstall the oil ller plug (3).
6. To purge trapped air:
a. Open release valve (4) one full turn.
b. Hold down the lifting arm (10) and
c. Operate pump handle (5) for eight full strokes.
d. Close release valve.
e. Pump handle until the jack reaches maximum height and continue to pump several times to
remove any trapped air.
f. Depress the rubber oil ller plug (3) just enough for any air to escape.
g. Open release valve counterclockwise one full turn and lower jack piston to its lowest position.
Use force if necessary.
h. Close release valve and check for proper pump action. Repeat as necessary.
7. Clean the jack with a soft cloth and mild detergent or solvent.
Registration is quick and simple, go to www.purpleline.co.uk/product-registration.
Please register within 14 days of purchase. Please retain your original purchase receipt.
CAUTION!
CARE & MAINTENANCE
PRODUCT REGISTRATION
KJ4000T User Manual Page 4

NOTES
KJ4000T User Manual Page 5

KJ4000T User Manual Page 6

KJ4000T User Manual Page 7

PRODUCT SPECIFICATION
© Copyright 2021. Purple Line Limited, Peninsula Business Centre, Wherstead, Suolk, IP9 2BB, UK
www.purpleline.co.uk
01473 601200
Photographs for illustration purposes only. Actual product may dier slightly.
Purple Line Limited reserve the right to alter product specication without prior notice.
design...innovate...improve
KJ4000T
SWL Minimum
Height
Maximum
Height
Overall
Dimension
(Retracted)
Net Weight
2000kg 170mm 390mm 170 x 125 x
132mm 4.7kg
kojack
®