Palfinger PTV 35 User manual

PTV
OWNER’S MANUAL
04/21

PTV 35/44/55/66 Owner ‘s Manual
Document Part Number: 90-1121-101 / 21-680_90-00_01-01
ECN-M1515, Rev. 1.0, 04-30-21
Copyright © 2021 Palfinger Liftgates LLC.
All rights reserved.
Information in this document is subject to change without notice.
Visit www.palfinger.com for up to date information and notifications.
If you received this product with damaged or missing parts,
contact Palfinger Liftgates at (888)-774-5844
Parts Order
[e-mail]
Technical Support
[e-mail]
15939 Piuma Ave.
Cerritos, CA 90703
Tel [phone]
Fax [phone]
www.palfinger.com
572 Whitehead Road.
Trenton, NJ 08619
Tel [phone]
Fax [phone]
www.palfinger.com

PTV 33/44/55/66 Owner‘s Manual
Rev. 1.01
Introduction
Thank you for purchasing a Palfinger Liftgate! Your PTV series liftgate is an example of the latest engineering
technology in the industry. With proper care and operation your liftgate will provide you with reliable, dependa-
ble service for years to come.
Palfinger Liftgates is ready to provide you with fast action when you need sales, parts, or technical
assistance. You can call the customer service department Monday to Friday 7 am to 5 pm Pacific Time or
reach Palfinger Liftgates 24 hours a day, 7 days a week through the internet home page (www.palfinger.com)
or voice message system. Providing quality, value and service to the customers is what our business is all
about.
Read this manual carefully to learn how to operate and how to take care of your liftgate properly.
Maintenance (other than the simple routine maintenance we ask you to perform within this manual, inspec-
tions, and repairs) must be completed by an Authorized Service Center Only. If you do not know who the
Authorized Service Center in your area is, please contact Palfinger Liftgates.

PTV 33/44/55/66 Owner‘s Manual
Rev. 1.02
Table of Contents
1Manual Updates.. ........................................................................................................................5
2Safety Information ....................................................................................................................- 6 -
3Important Information...............................................................................................................- 7 -
3.1 Important Notes.............................................................................................................- 8 -
4General Information..................................................................................................................- 10 -
4.1 Before Operation...........................................................................................................- 10 -
4.2 Liftgate Function and Useage Information.....................................................................- 10 -
4.3 Improper Useage ..........................................................................................................- 11 -
5General View of Liftgate...........................................................................................................- 12 -
5.1 General Figures ............................................................................................................- 12 -
6Maximum Load and Placement of Load on Platform .............................................................- 14 -
7Operation of Liftgate.................................................................................................................- 15 -
7.1 Theory of Operation ......................................................................................................- 15 -
7.2 Operating Instructions (Standard Units).........................................................................- 15 -
7.3 Dock Loading –Lowering Platform (Standard Unit).......................................................- 20 -
7.4 Auxiliary 3-Button Hand Held Control............................................................................- 21 -
7.5 Cart Stops.....................................................................................................................- 22 -
7.6 Aluminum Retention Ramp............................................................................................- 24 -
8Preventative Maintenence and Quick Check ..........................................................................- 25 -
8.1 Quick Check List...........................................................................................................- 25 -
8.2 Maintenance and Care..................................................................................................- 26 -
8.3 Trailer to Tractor Ground Test.......................................................................................- 27 -
8.4 Lubrication ....................................................................................................................- 28 -
8.5 Checking and Changing the Oil.....................................................................................- 29 -
8.6 Decal Placement and Inspection...................................................................................- 31 -
9Troubleshooting........................................................................................................................- 34 -
9.1 Basic Function Check....................................................................................................- 34 -
9.1.1 Liftgate is competely Dead (No Clicking or Movement at all) ...........................- 34 -
9.2 Battery Wiring –Truck Kit..............................................................................................- 36 -
9.4 Battery Wiring –Trailer Kit.............................................................................................- 37 -
9.5 Electrical Schematic Overview ......................................................................................- 39 -
9.6 Control Board Codes.....................................................................................................- 40 -
9.7 Hydraulic Schematic......................................................................................................- 41 -

PTV 33/44/55/66 Owner‘s Manual
Rev. 1.03
10 Required Information for Ordering Spare Parts and Repairs ................................................- 42 -
10.1 Ordering Spare/Replacement Parts...............................................................................- 42 -
10.2 Repairs..........................................................................................................................- 42 -
11 Warranty....................................................................................................................................- 43 -
12 Contact Address.......................................................................................................................- 44 -

PTV 33/44/55/66 Owner‘s Manual
Rev. 1.04
Company Information:
Company Name:
Advisor Name:
Trailer/Truck Year Make & Model:
Liftgate Information:
Liftgate Serial Number:
Liftgate Model Number:
Date of Purchase:
Date of Installation:
15939 Piuma Ave.
Cerritos, CA 90703
Tel [phone]
Fax [phone]
www.palfinger.com
572 Whitehead Road.
Trenton, NJ 08619
Tel [phone]
Fax [phone]
www.palfinger.com

PTV 33/44/55/66 Owner‘s Manual
Rev. 1.05
1 Manual Updates
Revision
Description
v1.0
•Initial Release

PTV 33/44/55/66 Owner’s Manual
Rev. 1.0 6
2 Safety Information
This manual follows the Guidelines set forth in “ANSI Z535.4-2007” for alerting you to possible haz-
ards and their potential severity.
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey
all safety messages that follow this symbol to avoid possible injury or death.
! DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
! WARNING indicates potentially hazardous situation which, if not avoided, could result in death or
serious injury.
! CAUTION indicates a potentially hazardous situation which, if not avoided, may result minor or
moderate injury.
CAUTIONwithout the safety alert symbol is used to address practices not related to personal injury.
(In this manual we use it to alert you to potentially hazardous situation which, if not avoided, may re-
sult in property damage.)
NOTICE without the safety alert symbol is used to address practices not related to personal injury. (In
this manual we use it to alert you to special instructions, steps, or procedures.)

PTV 33/44/55/66 Owner’s Manual
Rev. 1.07
3 Important Information
Before Getting Started
“READ FIRST”
Before starting any operations of the liftgate, please read and understand this Owner’s Manual. The
intention of this manual is to provide the user with a guide for the operation as well as preventive
maintenance. Do not attempt to modify or repair the liftgate unless performed by qualified personnel.
Please contact your nearest PALFINGER Liftgates distributor or PALFINGER Liftgates in California or
New Jersey for assistance if you have any questions regarding installation, operation or maintenance
at 888-774-5844.
This owner’s manual applies to the following models: PTV 35, 44, 55, 66
Maximum Capacity for liftgate models is as follows:
•PTV 35 - Capacity: 3500 lbs.
•PTV 44 - Capacity: 4400 lbs.
•PTV 55 - Capacity: 5500 lbs.
•PTV 66 - Capacity: 6600 lbs.

PTV 33/44/55/66 Owner’s Manual
Rev. 1.08
3.1 Important Notes
The electric supply is taken from the battery kit in the Power Pack Box. If the vehicle battery is not sufficient,
additional batteries need to be installed. The electric control power is secured via a fused circuit and an on-off
switch located inside the cab.
The PTV series liftgate is a 100% level-ride, rail style vertical lift liftgate.
•Rail style liftgates have two rails mounted to the rear of your vehicle, either by welding or bolting. These
rails support a platform which raises and lowers cargo.
•The hydraulic power unit is easily accessible for service and exchange.
•The piston rods are treated against corrosion. The Hydraulic Power Unit is equipped with a built-in
pressure relief valve, which prevents overloading when lifting.
The valves do not prevent overloading of the platform when lowering.
Additional safety features are:
•Pressure compensated flow control valve.
•Tread plate platform.
•Platform safety lock.
•Warning decals and manuals.

PTV 33/44/55/66 Owner’s Manual
Rev. 1.09
Improper operation of this liftgate may result in severe personal injury or death. DO NOT operate un-
less you have been properly instructed, have read and are familiar with the procedures in this manual.
This manual has been designed to illustrate the steps needed for the basic operation of the PTV lift-
gate. It also provides safety information and simple preventive maintenance tips.
This manual is not intended for use as a repair or troubleshooting guide. Repairs should be performed
by a PALFINGER Liftgates Authorized Service Center.
This Manual has been designed for use in conjunction with only the PTV series liftgates which are designed for
different capacities. There are four options available to determine the model and serial number of the installed
liftgate:
1) Refer to the serial number tag on the liftgate (Located on Left Side Column- shown below)
2) Ask your employer or lessor.
3) Call your PALFINGER Liftgates Authorized Service Center for assistance.
4) Call PALFINGER Liftgates for assistance in the USA at 888-774-5844. You can also contact PALFINGER
Liftgates by fax [phone] or on the internet- www.palfinger.com
For technical support, contact PALFINGER Liftgates or an authorized PALFINGER service center.
www.palfinger.com
Replacement manuals are available at https://www.palfinger.com/en-us/products/liftgates

PTV 33/44/55/66 Owner’s Manual
Rev. 1.010
4 General Information
4.1 Before Operation
REMEMBER:
It is the fleet manager’s responsibility to educate the operator on the liftgate and its intended use. The opera-
tor’s attention should be drawn to the permitted load limits and an understanding of the operation to ensure the
safety throughout the operation.
ONE-MAN OPERATION:
Never let an “outsider” operate the liftgate while you are handling the cargo.
A “misunderstanding” can result in serious personal injury.
In the interest of safety, it is important that all operating personnel properly understand the functions of the
liftgate, possible hazards, dangers, the load limits and load positioning for that specific unit.
4.2 Liftgate Function and Useage Information
Before the operator uses the liftgate, they should be thoroughly familiar with the liftgate functions and usage
according to the following:
1. Improper operation of this lift can result in serious personal injury. Do not operate unless you have been
properly instructed, have read and are familiar with the operating instructions. If you do not have a copy of the
instructions please obtain them from your employer, distributor, or lessor as appropriate before you attempt to
operate the lift.
2. Be certain the vehicle is properly and securely stopped before using the lift.
3. Always inspect this lift for maintenance or damage before using it. If there are signs of improper mainte-
nance, damage to vital parts or a slippery platform surface, do not use the lift. Do not attempt your own repairs
unless you are specifically trained.
4. Do not overload. See the Rating Label on the unit for the rated load. Remember that this limit applies to both
raising and lowering operations.
5. Each load should be placed in a stable position as near as possible to the body of the truck/trailer.
6. Never stand in, move through or allow anyone else to stand in or move through the area in which the lift op-
erates, including that area in which a load might fall.
7. This liftgate is intended for loading and unloading of cargo only. DO NOT use this liftgate for anything but its
intended use. This is not a passenger lift. Do not ride the lift with unstable loads or in such a manner that a
failure would endanger you. The lift is not equipped with a back-up system to prevent falling cargo in the event
of a failure.
The maximum loads must be observed and followed!

PTV 33/44/55/66 Owner’s Manual
Rev. 1.011
4.3 Improper Useage
Some examples of improper use of the liftgate may include, but are not limited to:
•Using the liftgate as an elevating work platform.
•Using the liftgate to push, pull, or tow loads or other objects.
•Using the liftgate to carry people (Only the operator may travel on the platform).
•Using the liftgate to clear snow.
•Trying to use the liftgate as a “launching pad”.
•Using force of the hydraulic system to bend, shear, or break objects.
•Driving a forklift over the liftgate.
•Driving the truck or trailer with the platform open.
•Driving the truck or trailer with platform unsecured in the travel position.
•“Plowing’’ with the platform.
Please read through the operational and technical description of the PALFINGER Liftgate.
Thank you for choosing PALFINGER Liftgates

PTV 33/44/55/66 Owner’s Manual
Rev. 1.012
5 General View of Liftgate
5.1 General Figures
Tail Light
Left Side
Column
UHMWDock
Bumpers
Chain
Arms
Support
Chains
Right Side
Column
Traverse
Main
Control
Switch
Load
Center
Left
Side
Runner
Right
Side
Runner
Aluminum
Retention
Ramp*
*Fixed Ramp *Fixed Ramp
w/ Cart Stops
Ramp options shown below are steel platform ramps. Same options are available for aluminum platforms.
Platform
Tip Section
Platform
Main Section
Toggle Switch
(Not Shown)

PTV 33/44/55/66 Owner’s Manual
Rev. 1.013
Control
Board
Primary
Pump & Motor
Battery
Compartment
Master
Shutoff
Switch
Shipping
Brace
Enclosure
Cover
Carrier
Frame
Battery
Voltage
Gauge
Manual
Reset
Circuit
Breakers
Auxiliary
Remote
Control
Cable
Entry
Ports
Hydraulic Enclosure: Dual Pump Configuration
Hydraulic Enclosure: Single Pump Configuration
Secondary
Pump & Motor
Control
Board
Primary
Pump & Motor
Battery
Compartment
Master
Shutoff
Switch
Shipping
Brace
Enclosure
Cover
Carrier
Frame
Battery
Voltage
Gauge
Manual
Reset
Circuit
Breaker
Auxiliary
Remote
Control
Cable
Entry
Ports
Security
Lock Hole
Security
Lock Hole

PTV 33/44/55/66 Owner’s Manual
Rev. 1.014
6 Maximum Load and Placement of Load on Platform
Every Palfinger Liftgate is rated up to a maximum load. The point of maximum load is rated at a defined
distance. The center point of maximum load is 24” from the PTV traverse.
24"
LOAD
By increasing this distance, the maximum load of the lift gate is decreasing. Make sure not to overload
the liftgate. Place the cargo in the middle of the platform. Operating a gate with a misplaced load may cause
serious damages or even injuries to the operator.
•Note that Maximum capacity is
rated at 24” from the truck. As the
load is placed further away from
the truck, the overall capacity of
the liftgate decreases.
•Never apply a load that exceeds
your liftgate’s maximum load
rating.

PTV 33/44/55/66 Owner’s Manual
Rev. 1.015
7 Operation of Liftgate
7.1 Theory of Operation
The rail-type liftgate is designed to transport cargo vertically from the vehicle bed to the ground and vice versa.
A hydraulic power unit provides pressure to two vertical cylinders that raise and lower the platform. Activation
of a control switch supplies current from a 12-volt battery source to the hydraulic power unit. The hydraulic
power unit in turn supplies hydraulic fluid to the hydraulic cylinders, causing them to retract and extend.
The platform is lowered by gravity; however, it also can be lowered by hydraulic power. Activation of the control
buttons opens the hydraulic valves and directs hydraulic fluid to extend the cylinder. The downward force on
the platform lowers it.
The platform is opened and closed hydraulically by the extension and retraction of the open/close cylinder.
7.2 Operating Instructions (Standard Units)
Steps:
1.Turn on power: To activate power to the liftgate, turn the master disconnect switch located on the outside
of the battery box to the “ON” position
Cab
Shutoff
Switch
OFF
ON
ON/OFF
Switch on
Outside of
Enclosure
Panel
Switch arrow
point to ON
2.Open Liftgate Platform: Be certain the operating area around platform is clear before opening platform.
Push and hold the “UP” button to raise the platform up so that it is completely out of the travel locks.
UP
Travel
Latch

PTV 33/44/55/66 Owner’s Manual
Rev. 1.016
Open the Liftgate Platform (continued): Be certain operating area around platform is clear before opening plat-
form. Pushing the “DOWN” button, and “OPEN” button together to power the platform open.
OPEN
DOWN
3.Lower the platform to the ground: Pushing the “DOWN” button, lower the platform to the ground.
Note: for power down operation, push the down button twice (within 3 seconds).
DOWN

PTV 33/44/55/66 Owner’s Manual
Rev. 1.017
Aluminum Retention Ramp (ARR) Optional: Skip this step if the platform has a fixed ramp.
Stored
ARR
ARR
Retainer
Latch
ARR
Chain
ARR
Handle
Turn
Clockwise
ARR
Chain
Chain
Notch
90°
Opened
ARR
ARRlaying
between
platform and
retainer latch
Chain
Notch

PTV 33/44/55/66 Owner’s Manual
Rev. 1.018
4.Raise the platform to bed level: Pushing the “UP” button, raise the platform to bed level.
5.Bleeding the system: With the platform at bed level, push the “UP” button for thirty (30) seconds. This
will bypass hydraulic fluid through hydraulic poppet valves located in each of the lift cylinder pistons re-
turning hydraulic fluid back to the reservoir via the return lines.
UP
6.Closing and Storing of the Platform for transit: With the platform open at bed level use the “UP” button
and “CLOSE” button together, power the platform closed.
UP
OPEN