DHOLLANDIA
1
DHOLLANDIA n.v.
HQ office, Belgium
Zoomstraat 9
9160 Lokeren
Tel : +32 (0)9 349 06 92
Doc: FIT-LM30-EN-2015-rev 1 • Rev NR : 1 • Date : 09/2016
Explore the world of DHOLLANDIA liftgates at: www.dhollandia.com
INSTALLATION MANUAL
DH-L* 1500 - 3000 kg
DHOLLANDIA
2
MAIN ITEMS ANNEXES
1 Introduction & Disclaimer 3
2 Operating safety precautions 4
3 Installation safety precautions 5
4 Liftgate terminology 6
5 Installation parameters terminology 7
6 Getting started … 9
7 Installation dimensions 11
8 Methods to mount lift frame 14
§8.1 Method with fitting jigs 15
§8.2 Method with vertical platform 16
§8.3 Impact of rubber platform seals 17
§8.4 Method with horizontal platform 17
9 Mounting of the lift frame under chassis 19
§9.1 Positioning of the lift frame 19
§9.2 Fixation of the mounting plates 20
§9.3 Additional remarks for heavy-duty lifts and very long
platforms 24
§9.4 Notes for I-beam chassis (trailers and semi-trailers) 25
§9.5 General remark 25
§9.6 RUPD and towing hitches 26
10 Mounting of platform 28
11 Other mechanical works 30
§11.1 End stops for work position of platform 30
§11.2 Platform stow position 31
§11.3 Installation of the RUPD 33
12 Electrical installation 34
§12.1 Installation of main control box 34
§12.2 Optional mounting brackets 35
§12.3 Installation of extra controls 35
13 Putting the liftgate into service 36
14 Lubrication instructions 38
15 Quality control and PDI 39
A1 Prescribed tightening torques for bolts in N.m 41
A2 Safety & warning signs 42
A3 Grease plans 44
A4 Towing hitch assembly 46
A5 Electric and hydraulic diagrams 49
Copyright © 2015, DHOLLANDIA NV
This publication, or parts thereof, may not be reproduced or transmitted in any form or by any means, electronically
or physically, for any purpose without the express written authorization of DHOLLANDIA NV
DHOLLANDIA
3
1– INTRODUCTION & DISCLAIMER
• This manual provides you with the information necessary for the installation of the
DHOLLANDIA DH-L* cantilever liftgates 1500-3000 kg.
• It provides you with general instructions applicable to the common truck and trailer types. It
might be possible that specific issues particular to your installation case are not, or not fully
covered by this manual. In case of doubt, please contact your national DHOLLANDIA
distributor for further assistance.
• A proper installation is extremely important for maximum operational reliability and
durability of the liftgate, and more importantly to guarantee the safety of the operator, of
coincidental bystanders, and of the technical personnel taking care of maintenance and
repair.
• The illustrations and information contained in this manual are not contractually binding, an
cannot lead to any form of legal action against DHOLLANDIA. DHOLLANDIA
liftgates are constantly being adapted to new vehicle and chassis developments and
special customer requirements. DHOLLANDIA reserves the right to alter product
specifications without prior notice; such modifications might not have been included at the
time this manual was printed. It is the sole responsibility of the installer(s) to follow
shop best practices for safety and to use good common sense. If you require further
information or are unclear about ANY part of this installation, contact the national
DHOLLANDIA distributor for further guidance prior to continuing.
• SIGNS & SYMBOLS: This manual uses a generic internationally accepted signs, but also
purpose made signs. The meaning of these signs is explained in the annex to this manual.
Make sure you understand these signs prior to installation.
• Please take special notice of the following signs. They mark the likelihood and severity of a
potential injury if a person doesn’t follow the instructions contained on the safety sign.
Examples of generic,
internationally accepted signs
Examples of DHOLLANDIA
purpose made signs
DANGER : indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
[white letters on red background]
WARNING : indicates a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
[black letters on orange background]
CAUTION : indicates a potentially hazardous situation
which, if not avoided, could result in minor or moderate
injury. [black letters on yellow background]
NOTICE : indicates a potentially hazardous situation which,
if not avoided, could result in property damage. [white letters
on blue background]
SAFETY INSTRUCTIONS : indicate general instructions
relative to safe work practices, reminders of proper safety
procedures, or the location of safety equipment. [white
letters on green background]
SAFETY
INSTRUCTIONS
NOTICE
• If unsure where you can reach your national DHOLLANDIA distributor,
consult the website for further reference:
www.dhollandia.com
DHOLLANDIA
4
2– OPERATING SAFETY PRECAUTIONS
• The operating safety instructions below only summarize the most important
requirements. Consult the user’s manual supplied with the liftgate, for an
overview of ALL applicable operating safety precautions.
• The operation of the liftgate should be restricted to one single operator.
• The operator should not stand behind, under or within reach of the platform while operating
the liftgate. Never operate the liftgate unless the area around the platform is clear of
obstacles and other persons.
• Operate the liftgate from a safe position at the side of the vehicle body, away from the
moving platform. Keep fingers, hands, arms, legs and feet clear of the moving parts of the
liftgate and the edges of the platform.
• When operating the liftgate from a position on the platform or inside the vehicle body,
make sure to keep your feet and legs, hand and arms clear of the inboard edge of the
platform. Keep a safe distance from the hazardous crushing area between the rising
platform and the rear edge of the vehicle floor or extension plate.
• Do not exceed the maximum rated capacity of the liftgate. Respect the loading diagrams.
• In an emergency situation, release the control switch to stop the liftgate. If the control box
is equipped with an emergency stop or main battery isolator switch, switch these off to cut
the electrical power.
• Ensure the liftgate is in stowed position when not in use. Extended platforms could create
a hazard for people and vehicles passing by.
• Never jump off a moving platform, or a platform at height.
• When walking on and off the platform, check for slippery surfaces to prevent injury by
slipping. Always wear professional safe footwear with a steel toe-cap and a good non-slip
sole. If the platform surface, or the working area around the platform is slippery because of
oil, grease, mud, dirt, snow, etc… DON’T use the liftgate but clean the platform or work
area first.
• When walking on and off the platform, pay attention to any protruding items to avoid injury
by tripping and falling (e.g. platform lights, levers for roll-stop systems, foreign objects on
the platform, etc…).
• In order to ensure the safety of the liftgate operators, or any coincidental
bystanders, the liftgates should only be used by skilled operators, who have
been duly trained, and understand all applicable safety precautions and the
operating instructions summarized in the user’s manual.
• Negligence can put the operator and third parties at great risk, and could result in
severe personal injury or death.
• In case of doubt, contact the national DHOLLANDIA distributor for further assistance.
DHOLLANDIA
5
3– INSTALLATION SAFETY PRECAUTIONS
• You must read and understand all safety and technical installation instructions
in this manual before starting any work on the liftgate. Then progress step by
step.
• Always wear appropriate working clothes. This comprises off: safety glasses with side
guards, or a wrap-around facial shield; steel toe safety shoes; fire-resistant overalls;
protective gloves; adequate ear protection; a safety helmet when working under the
vehicle chassis.
• Never wear loose-fitting clothes that may get trapped in the moving parts of the liftgate, or
in any machinery and tools used for the installation. Don’t wear rings, bracelets, necklaces,
watches etc...
• Always use the proper tool for the job. Repair or replace worn-out or damaged tools before
use.
• Pay special attention to the lifting devices (fork lifts, overhead cranes, hoists, chains or
straps…) used to raise and maneuver the liftgates, and for the clamping tools (C-clamps,
vices,…) used to fix the liftgate, its mounting plates and bed extension to the vehicle
chassis and box. Ensure these tools are appropriate for the job, and in good working
order.
• Place vehicle on a flat even ground, and chock the wheels so that it cannot move during
the installation process. In case of a motor vehicle, switch off the engine and engage the
parking brake before starting.
• Do not work underneath the liftgate, or within reach of the platform and the moving parts of
the liftgate, without properly securing and supporting the platform and the lift frame against
accidental falling by means of an overhead gantry crane and hoists, a fork lift or equivalent
means.
• Make sure the vehicle battery power is disconnected while installing the liftgate. Connect
the battery power to the liftgate only when the installation is completed, or as required in
the installation instructions.
• Except for the support channels of the braces of the side steps, which are normally welded
to the cross members of the auxiliary chassis, DHOLLANDIA liftgates are designed
as a bolt-on system, and don’t require any welding.
• Before welding, note that welding on galvanized parts releases hazardous
fumes. Provide adequate ventilation, and wear an appropriate respirator.
• Welding should be done by qualified personnel only, and only to the extent that such is not
prohibited by the vehicle manufacturer. Ensure that the battery and ground cables are
disconnected from the batteries, and that all vehicle electrical equipment is fully isolated
before welding.
• If for any reason, trouble-shooting and / or repair might be needed during the
installation process, first consult the safety instructions for repair and
maintenance in the user’s manual.
• In order to ensure the safety of the liftgate operators, any coincidental bystanders,
and technical personnel working on liftgates, installation, maintenance and repair
works must only be performed by skilled and authorised technicians, who have
been duly trained, and understand the content of the installation and the owner’s
manual, as well as all safety considerations involved in their job.
• Negligence can put the technical personnel, the operator and third parties at great risk,
and could result in severe personal injury or death.
• In case of doubt, contact the national DHOLLANDIA distributor for further assistance.
• Never modify DHOLLANDIA liftgates or their mounting plates, never deviate from the
described installation procedures without prior written consent by the manufacturer.
DHOLLANDIA
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4– LIFTGATE TERMINOLOGY
1 Lift frame
2 Mounting plates L+R
3 Platform
4 Lift arms L+R
5 Lift cylinders L+R
6 Tilt cylinders L+R
7 Auto-tilt brackets L+R
8 Hydraulic pump unit
9 Rear underrun protection (RUP) L + M + R
Rear underrun protection device (RUPD) [*]
10 Control unit (depending on order)
[*] RUP / RUPD = official UN terminology
Fig. 4.1
1
2
2
3
4
5
6
7
8
9
9
10
DHOLLANDIA
7
5– INSTALLATION PARAMETERS TERMINOLOGY
larm Length of the lift arms [= Lift ARM length]
vfh max Max. height of vehicle bed (UNLOADED), applicable
for the given arm length [= Vehicle Floor Height]
vfh Actual height of vehicle bed (UNLOADED)
vfh min Min. height of vehicle bed (FULLY LOADED)
cth max Max. height from underside of chassis to top of the
vehicle bed, applicable for the given arm length [=
Chassis Total Height]
cth Actual height from underside of chassis to top of the
vehicle bed
mfc Mounting height of lift frame under the vehicle:
measured from the top of vehicle bed to the center
of the lift arm [= Mounting height Floor to Center of
lift arm]
mcg Mounting height of lift frame above the ground:
measured from the center of the lift arm to the
ground [= Mounting height Center of lift arm to
Ground]
mpg Ground clearance under liftgate [Mounting
clearance Plates to Ground]
lbup Horizontal dimension from rear of platform to rear of
RUPD [= Lift BUmper to rear of Platform]
lbug Vertical clearance of RUPD to ground [= Lift
BUmper to Ground]
pd [= Platform Depth]
pduf Section of the platform that protrudes below the
vehicle bed in closed position [= Platform Depth
Under Floor]
Fig. 5.1
DHOLLANDIA
8
Fig. 5.2
lof Required mounting space to end of lift frame [= Lift
Overhang to Frame]
lop Required mounting space to end of premounted
pump unit [= Lift Overhang to Pump unit]
lac Width of the lift arms [= Lift Arm Center]
chw Vehicle chassis width [= CHassis Width]
bwo min Min. body width with pump unit in premounted
position [= Body Width Outside]
bci Width of the mid panel [= Body Cut Inside]
bcw Width of the cut-outs for the lift arms and tilt
cylinders [= Body Cut Width]
bft Thickness of the rear cross member or sill of the
vehicle bed [= Body Floor Thickness]
blb Available mounting space for rear truck lights on
outside of the tilt cylinders [= Body Light Boxes]
lft Max. thickness of the rear cross member or sill of
the vehicle bed, in the maneuver zone bcw for the
lift arms and tilt cylinders [= Lift Floor Thickness]
DHOLLANDIA
9
6– GETTING STARTED...
• Vehicle manufactures may have issued important instructions on various aspects of the
liftgate installation, specific to the brand and type of chassis, such as welding instructions
(or prohibition to weld !); instructions on chassis drilling and bolt-on connections to the
chassis; recommendations on the use of hydraulic stabilizing legs; guidelines for the
battery and ground cable connections; fuses and other electrical interfaces; etc...
• Place vehicle on a flat even ground, and chock the wheels so that it cannot move during
the installation process. In case of a motor vehicle, switch off the engine and engage the
parking brake before starting.
• Verify the installation kit is complete, and that all parts needed to correctly fit the liftgate are
present.
• Compare the voltage of the vehicle batteries with the voltage of the hydraulic pump unit of
the liftgate.
• Compare the installation dimensions and maximum installation parameters indicated in the
installation drawing with the actual dimensions of the vehicle, to verify compliance. (See
next chapter).
• Verify that the vehicle chassis and body are strong enough to support the load and moment
created by the liftgate at maximum load. Refer to the Body Builder Guide (BBG) of the
vehicle manufacturer for specific details. Check the stability of the vehicle and the weight
over the axles with the addition of a liftgate loaded to maximum capacity. The weights
indicated in the technical documentation and price list are theoretical and approximate, and
may vary from one liftgate installation to another.
• Make sure that the body is accurately fitted to the vehicle chassis.
• Remove the battery clips from the batteries. If the vehicle is equipped with an ABS braking
system or other electronic devices, check OEM instructions how to proceed safely.
• Remove all objects that are mounted in the mounting space required by the liftgate (RUP,
spare wheel carrier, pallet racks, tool boxes, etc.). If necessary, consult with the OEM
vehicle manufacturer for replacement solutions (e.g. special spare wheel carriers, exhaust
pipe modifications, etc.).
• Finish the liftgate in compliance with applicable road legislation of the country where the
vehicle will be registered.
• When connecting hydraulic fittings, make sure that the connections are thoroughly clean,
and that you don’t contaminate the hydraulic oil.
• Grease all bearings and pins before putting the liftgate into service. It is recommended to
grease all articulation bearings before mounting the corresponding articulation pin.
• After installation, work through the pre-delivery inspection (PDI) checklist, verify all check
points with due diligence. Make sure the final inspection is signed off by an inspector who
is not part of the installation team. Fill-out and sign-off the Fitting Declaration included in
the user’s manual issued with each liftgate.
• Do not over-pressurize any liftgate functions (LIFT / LOWER / OPEN / CLOSE) before the
liftgate installation is fully finished.
• During installation and while testing, verify that the liftgate and its moving parts don’t
interfere with, or cause damage to the vehicle systems (e.g. to suspension, braking system,
hydraulic and electrical circuits, etc.).
NOTICE
• The installer must verify and ensure compatibility between the liftgate and the
vehicle.
• The installer must verify and ensure compliance with the installation instructions
issued by the vehicle and body manufacturer.
• Improper modifications to the vehicle chassis or body could cause serious mechanical
failure of the vehicle. The installer must ensure that modifications to the vehicle chassis
and / or body will not adversely affect their structural integrity.
• In the event instructions of vehicle manufacturer conflict with the installation instructions
issued by DHOLLANDIA (e.g. on fuse ratings, etc.), contact your national DHOLLANDIA
distributor for further assistance.
DHOLLANDIA
10
• Do not release the locking bolts of the auto-tilt
brackets on the lift frame before the liftgate
installation is fully finished.
M Fig. 6.1
DHOLLANDIA
11
7– INSTALLATION DIMENSIONS
• If an INSTALLATION DRAWING is available (via order
confirmation), this will provide you with the critical
installation dimensions that should be observed. [fig. 7.1].
• If no installation drawing is available, max. and min.
installation parameters can be retrieved from TECHNICAL
PRODUCT SUMMARIES [fig. 7.2], or from the PRODUCT
RANGE POCKET GUIDE [fig. 7.3];
• Compare the installation dimensions and maximum
installation parameters indicated in above mentioned
sources with the actual dimensions of the vehicle, to verify
compliance.
• Verify that the actual vehicle dimensions comply with the
max. vehicle bed height vfh max, and with the min. / max.
mounting heights mfc.
• Determine the applicable mounting height mfc. This
dimensions is given on the installation drawing, or can be
calculated as follows:
Fig. 7.1
Fig. 7.2
Fig. 7.3
vehicle bed height vfh - 140
2
mounting height mfc =
Fig. 7.4 EX.
Ex. For vehicle with 1250mm bed height:
Î Fitting height mfc = (1250-140)/2 = 555 mm
• You might want to deviate from the initial mounting height
mfc. Examples:
1. In order to increase the ground clearance mpg, you
could choose to fit liftgate higher above ground
2. In case of short mounting space lof / lop, you could
choose to fit liftgate lower to the ground
3. To comply with RUP regulations, you could choose to
fit liftgate higher above or lower to the ground.
larm
vmax
mfcmax.
mfcmin.
mcgmax.
lof
lof
New
abbreviations
04/2016
DHOLLANDIA
12
NOTICE
• When changing the mounting height, ensure to stay
within the given ranges for the installation parameters
vfh, mfc and mcg [fig. 7.4].
• Mounting height mfc is measured from the top of the
vehicle bed to the centre of the lift arm articulation pin.
See Fig. 7.5 + 7.6 how this is measured for liftgates with
mechanical or hydraulic auto-tilt at ground level.
• When determining mounting height mfc, make sure the
height of the RUP complies with regulations.
Fig 7.5 Fig. 7.6
≠
H M
• Required mounting space lof / lop will vary in function of
arm length larm and chosen mounting height mfc. Refer to
sources mentioned above for values. [fig. 7.7].
EX.
Fig. 7.7
DHOLLANDIA
13
Fig 7.8
• The arm width lac and the position of the pump unit
determine the min. width of the vehicle body bwo min.
• The arm width lac further determines the width of the mid
panel bci, the position of the slots for the lift arms bcw, and
the available space for rear truck lights on the side of the
tilt cylinders blb. [fig. 7.8].
• The height of the rear cross member lft depends on the
mounting mfc, and the distance of the platform behind the
rear of the body. lft can be increased by mounting the
liftgate lower (higher mfc-value) or adding space between
the rear of the body and the platform [fig. 7.9].
• Refer to sources mentioned above for values. Modify the
rear part of the vehicle to suit the chosen mounting
parameters.
EX.
lft (1) < lft (2)
1 2
1 2
Fig 7.9 EX.
NOTICE
Where chassis beams, longs sills, the rear sill and other
steel chassis or body components have been cut, grinded,
drilled, etc…, the installer should apply adequate anti-
corrosive coating to protect the vehicle and body against
corrosion. Check, and make sure you comply with the
instructions of the vehicle manufacturer.
DHOLLANDIA
14
8– METHODS TO MOUNT LIFT FRAME
• There are 3 different methods to mount the frame of the
liftgate:
1. Using the fitting jigs [option OAM103]. This method is
universal, and can be used for situations where the
platform forms the rear closure of the body aperture
(without rear doors), or stands behind the vehicle
doors.
2. Using the platform lifted in vertical position. This
method is equivalent to previous one, with the
additional benefit that it allows to compensate the
platform position if the body is out of square.
3. Using the platform lifted in horizontal position. This
method is particularly suitable for factory built panel
vans, or for vehicles with barn doors (where the door
locks protrude beyond the rear cross member of the
vehicle bed).
• Methods 1 and 2 can only be used for STANDARD
platforms with a conventional rounded edge [ref. OAP310].
Platforms with extended edge [options OAP312, OAP313,
OAP407, etc.) require a special approach. Consult your
national DHOLLANDIA distributor for further
assistance.
DHOLLANDIA
15
Fig. 8.1.1
§8.1 - Method with fitting jigs
• Measure the outside width across the lift arms. This
dimension corresponds with the inside width needed
between the 2 fitting jigs.
• Mark the centre line of the vehicle on the rear cross
member of the vehicle bed, and position the 2 fitting jigs in
such a way that:
1. the distance between the 2 fitting jigs matches the
outside width across the lift arms, and
2. the distance from each fitting jig to the middle line is
equal, so that they are perfectly centred in the rear
body aperture [fig. 8.1.1].
• For half width platforms, position the fitting jigs in function
of the arm width lac, and the position that the half platform
requires in the rear body structure.
• Once the position of the fitting jigs is finalised and checked,
fasten them to the rear cross member of the vehicle bed by
means of bolts, clamps or spot welding [fig. 8.1.2 + 8.1.3].
• Ensure that the holes of the 2 fitting jigs are perfectly
aligned. To verify this, slide a round bar through the holes,
and to check alignment with the rear cross member of the
vehicle bed.
• If liftgate is mounted with a rubber seal kit between the
closed platform and vehicle body, the position of the fitting
jigs must be adjusted to suit the thickness of the sealing
rubbers [§8.3].
lac
Fig. 8.1.2 Fig. 8.1.3
DHOLLANDIA
16
Fig. 8.2.1
§8.2 - Method with vertical platform
• Spot weld or bolt 2 temporary mounting supports on the
rear cross member of the vehicle bed, at max. 200mm from
the outside of the body [fig. 8.2.1].
• The fixation of these temporary mounting supports should
be sufficient to carry the proper weight of the platform
during installation.
• Mount the supports at height pduf below the vehicle bed
[fig. 8.2.2]. Pduf is mentioned on the installation drawing, in
the technical product summaries, and in the product range
pocket guide.
• Next, raise the platform (by hoist, forklift, overhead gantry
crane,...), and position it onto the mounting supports.
The platform is very heavy! Handle with caution. If platform
is dropped, it may cause serious personal injury.
• Slide a spacer D = 5 mm between the platform and the rear
frame of the body. [fig. 8.2.2]
• Adjust and centre its position. Ensure platform stands
perfectly aligned in the rear frame of the body. [fig. 8.2.3]
• Fasten and secure the final position of the platform by
means of hoists, clamps, ... [fig. 8.2.1], in order to prevent
mounting errors, accidental fall and injury.
• If liftgate is mounted with a rubber seal kit between the
closed platform and vehicle body, the position of the
platform must be adjusted to suit the thickness of the
sealing rubbers [§8.3].
!
Fig. 8.2.2 Fig. 8.2.3
DHOLLANDIA
17
Fig. 8.3.1
§8.3 - Impact of rubber platform seals
• If liftgate is mounted with a rubber seal kit between the
closed platform and vehicle body (option OAT001-
OAT005), a spacer Q must be inserted between the sill of
the vehicle bed and the fitting jigs or platform.
!
!
Top &
side profile
Floor profile Q
27mm with jigs
32mm with platform
13mm with jigs
18mm with platform
Steel, alu or inox
ø15
Fig. 8.4.1
§8.4 - Method with horizontal platform
• This method is recommended only when the platform can’t
stand directly behind the rear frame of the body, or behind
the rear doors. E.g. cargo boxes with protruding door locks
[fig. 8.4.1].
• Problems and solutions for such cases are
described in separate document (available on
internet or from your national DHOLLANDIA
distributor [fig. 8.4.2]:
FIT-LM-container locks-yyyy-01-EN
Fig. 8.4.2
DHOLLANDIA
18
• Determine distance where platform should stop behind the
rear cross member of the vehicle bed. Prepare a
corresponding spacer to insert between the rear cross
member and platform during installation.
• Mount 2 strong tubes over the inboard platform edge [fig.
8.4.3]
• Position the platform with the 2 tubes on the vehicle bed.
Slide required spacer between the rear cross member of
the vehicle bed and the platform.
• Secure the platform safely (by means of hoist, overhead
gantry crane, forklift, lifting jack, etc.)
!
!
Fig. 8.4.3
The platform is very heavy! Handle with caution. If platform
is dropped, it may cause serious personal injury.
• Centre the platform. Verify it is laterally flush with the
vehicle bed, and parallel with its rear cross member.
• The gap between the rear cross member of the vehicle
bed and the inboard platform edge will need to be covered
by a bridge plate or other techniques [separate
instructions above under fig. 8.4.2].
DHOLLANDIA
19
9) MOUNTING OF THE LIFT FRAME UNDER THE CHASSIS
§9.1 - Positioning of the lift frame
• Position the lift frame on a wheeled jack (order code
M0025) [Fig. 9.1.1], or use a similar device to slide the
frame under the chassis of the vehicle.
• Slide the lift frame under chassis, and raise the lift arms to
the fitting jigs (or to articulation hands on platform).
• Slide the articulation pins through the fitting jigs (or platform
hands) and the articulations on the lift arm [fig. 9.1.2].
• Raise lift frame to the correct fitting height mfc. [fig. 9.1.3]
• While raising the lift frame, push centrally. Never apply
force at extremities of the lift frame to change or correct the
mounting position at one side only.
• Pivot the lift frame in the longitudinal axis of the vehicle, to
ensure that top surface of the lift frame is parallel to the
vehicle bed. [fig. 9.1.4]
• If it proves difficult to orient the lift frame correctly,
disconnect the forks of the lift cylinders from the lift arms,
so that the lift arms and lift frame can move freely. [fig.
9.1.3]
• In case of bolt-on mounting plates, fit the mounting plates
over the frame. Do not tighten the nuts at this stage.
• Ensure the lift frame is positioned conform
the mounting instructions indicated in the
installation drawing and manual, before
drilling or welding the mounting plates to the
chassis.
• It is not allowed to reduce the width of the
mounting plates without prior formal
authorization from DHOLLANDIA.
Fig. 9.1.1
!
Fig. 9.1.2
Fig. 9.1.3 Fig. 9.1.4
DHOLLANDIA
20
§9.2 - Fixation of the mounting plates
• Except lifts equipped with premounted mounting plates, the
mounting plates are designed as bolt-on system, both
where the plates are joined to the lift frame, as where they
are mounted to the vehicle chassis.
• If you intend to weld anyhow, note that liftgate might be
equipped with thermoplastic hydraulic hoses.
Fig. 9.2.1
NOTICE
• Liftgate might be equipped with thermoplastic hydraulic
hoses, that don’t endure welding spatters.
• If any welding works are done to the mounting plates, all
hoses must be adequately covered and protected, e.g. by
a leather welding blanket.
• When the hydraulic system is under pressure, failure to
protect the hoses could cause a flaming flash, and might
cause serious personal injury.
• Ensure that the lift frame is correctly centred under the
vehicle chassis and body. [fig. 9.2.1]
• Adjust the mounting plates to the width of the vehicle.
• Straighten the mounting plates, and make sure they stand
perpendicular to the lift frame. [fig. 9.2.1]
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