Premium Supply ZJC-1-K User manual
Premium Supply
Operator’s Manual and Installation Instructions
Premium Supply
2038 West Interstate 30
Greenville, Texas
866-934-0777
Proud members of:
October 15, 2020
Models
ZJC-1-K , ZJC-2-K
ZJC-1ADS-K , ZJC-2ADS-K
EZ Lifter Retrot Hydraulic Jacks
Premium Supply
Greenville, Texas
2
Table of Contents
INTRODUCTION .............................................................................................................3
STANDARD WARRANTY AND WARRANTY EXTENSIONS.......................................4
SAFETY FIRST................................................................................................................5
SAFETY PRECAUTIONS ...............................................................................................6
EZ LIFTER KITS ..............................................................................................................7
ZJC-1-K ......................................................................................................................7
ZJC-2-K .......................................................................................................................8
ZJC-1-ADS-K...............................................................................................................9
ZJC-2-ADS-K.............................................................................................................10
EZ LIFTER JACK INSTALLATION ............................................................................... 11
DUAL ACTING HYD. POWER UNIT INSTALLATION.................................................16
HYDRAULIC POWER AND HOSE INSTALLATION ...................................................17
Battery Hookup HPU .................................................................................................17
Hose Connections for Kit ZJC-1-K ............................................................................18
Hose Connections for Kit ZJC-2-K ............................................................................19
Hose Connections for Kit ZJC-1-ADS-K....................................................................20
Hose Connections for Kit ZJC-2-ADS-K....................................................................21
Premium Supply
Greenville, Texas
3
Jack Model Number:
Jack Serial Number:
Pump Installation and Operation Manual
Number:
In Service Date:
Dealer:
Address:
City, State, Zip:
Dealer Phone Number:
INTRODUCTION
This manual covers proper EZ Lifter jack installation, hydraulic connections, wiring and
service of the Premium Supply EZ Lifter.
NOTICE: READ THIS ENTIRE MANUAL BEFORE ATTEMPTING TO INSTALL ANY
COMPONENT CONTAINED IN THE EZ LIFTER JACK KIT.
This manual should be kept at all times with the trailer, jack, hoist or other equip-
ment or device(s) with which this Premium Supply product is used or installed.
NOTE: Installation of Premium Supply products on your truck or trailer or other
equipment may void or aect the truck or trailer or equipment warranty – contact
the manufacturer to ensure continued warranty coverage or conditions or excep-
tions to warranty that may be aected.
Illustrations are for instructional purposes only.
IMPORTANT INFORMATION
Premium Supply
Greenville, Texas
4
STANDARD WARRANTY AND WARRANTY EXTENSIONS
→STANDARD WARRANTY
Premium Supply makes no express warranty for this product except those specically set forth herein.
Premium Supply warrants its products to be free from defect in design, material and workmanship for a
period of 36 months from original date of purchase, and to be suitable for and to perform in accordance
with the use(s) and specications stated in product materials. This warranty supersedes all other warran-
ties. Except for warranties herein stated, there are no other warranties.
EXCLUSION OF IMPLIED WARRANTIES: PREMIUM SUPPLY MAKES NO WARRANTY OF MER-
CHANTABILITY OF THE GOODS SOLD UNDER THIS AGREEMENT. PREMIUM SUPPLY MAKES NO
WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OF THE GOODS SOLD.
This warranty applies only to parts manufactured by Premium Supply. Components not manufactured by
Premium Supply shall be covered under the original manufacturer’s warranty. Premium Supply will assist
in administering all such warranties. If a defect in a product is discovered and is covered by this warranty,
Premium Supply will have the option to repair, refurbish or replace any warrantied item(s), such option to
be exercised in Premium Supply’s sole dicretion. This warranty inures to the benet of the original pur-
chaser only, is non-transferable, and has no cash value
→WARRANTY EXTENSIONS
f the following conditions are met, the standard warranty will be extended as stated below if (1) the
hydraulic oil is purchased from Premium Supply and (2) all single acting circuits are plumbed with a hy-
draulic hose istalled on both sides of the cylinder.
4 years for battery optimizer kit that include:
20 amp. road charger with 7 way
5 amp battery charger
SP-3 – 3watt SolarPulse panel
5 years for battery optimizer heavy duty kit that includes:
20 amp. road charger with 7 way
8 amp, battery charger
SP-7-7 watt SolarPulse panel
6 years for battery optimizer extreme heavy duty kit that includes:
20 amp. road charger
18 amp. battery charger
SP-12-12 watt SolarPulse panel
→EXCLUSIONS
This warranty covers only defects in design, manufacturing and/or materials discovered while using the
product as recommended by the manufacturer. The warranty does not cover: (1) loss or theft; (2) product
failure or damage caused by user abuse or neglect, improper use, improper installation, improper mainte-
nance, improper storage, or improper or unauthorized modication(s); (3) parts that are subject to normal
wear and tear; (4) paint, nishes or paint preparation performed by anyone other than Premium Supply;
(5) deterioration of paint and/or appearance caused by normal wear and tear and/or exposure to natural
elements; (6) modications not authorized by Premium Supply; and/or (7) loss brought about by natural
disaster or acts of God. This warranty becomes VOID and of no force or eect upon modications to prod-
uct component performed by anyone other than Premium Supply if such modications are not authorized
by Premium Supply.
Premium Supply
Greenville, Texas
5
SAFETY FIRST
IT IS YOUR DUTY AND RESPONSIBILITY TO COMPLETELY READ THROUGH AND
UNDERSTAND THIS MANUAL AND ALL OTHER MATERIALS PROVIDED WITH PRE-
MIUM SUPPLY PRODUCT(S)(INCLUDING MATERIALS PROVIDED BY THIRD PARTY
MANUFACTURERS) BEFORE ATTEMPTING ANY INSTALLATION OR OPERATION
OF PREMIUM SUPPLY OR THIRD PARTY PRODUCT(S) SUPPLIED BY PREMIUM
SUPPLY. IF AT ANY TIME YOU HAVE QUESTIONS ABOUT THE INSTALLATION
OR OPERATION OF PREMIUM SUPPLY OR PREMIUM SUPPLY SUPPLIED PRO-
DUCT(S) OR ABOUT THE CONTENTS OF THIS MANUAL, CONTACT PREMIUM
SUPPLY BEFORE PROCEEDING WITH THE CONTEMPLATED INSTALLATION OR
OPERATION. PREMIUM SUPPLY IS NOT RESPONSIBLE FOR PROPERTY DAMAGE
OR PERSONAL INJURY OR DEATH THAT MAY OCCUR FOR YOUR FAILURE TO
COMPLY WITH THESEREQUIREMENTS.
This symbol is used to call attention to instructions concerning personal
safety. Be sure to observe and follow these instructions. Take time to read
thoroughly and to be careful!
A brief description of signal words that are used in this manual follows:
DANGER indicates an imminently hazardous situation which, if not avoided,
WILL result in property damage, death or serious injury.
WARNING indicates a potentially hazardous situation which, if not avoided,
COULD result in property damage, death or serious injury and includes hazards
that are exposed when guards are removed.
CAUTION indicates a potentially hazardous situation which, if not avoided, MAY
result in property damage or minor or moderate person injury including death. It
is also used to alert against unsafe practices.
SAFETY SIGN LOCATIONS
Read all safety signs on the trailer and those included with or stated in this manual.
Keep these signs clean and replace any lost, damaged or destroyed signs.
→LIMITS OF LIABILITY
Should the product fail, the sole recourse is repair or replacement, as described in the preceding para-
graphs. Premium Supply is not liable to any party for direct, indirect or consequential damage(s) resulting
from failure of the product. Under no circumstances will Premium Supply be responsible for lost prot,
lost savings, damage to other equipment, rental or replacement costs, or other incidental or conse-
quential damages arising from use or inability to use the product. Damages, if any, recoverable against
Premium Supply shall under no circumstances exceed the current list price of the product excluding tax,
shipping and handling charges
By using the product, user accepts all terms stated herein. Premium Supply re-
serves the right to make improvements to any model or product without notice.
Premium Supply
Greenville, Texas
6
SAFETY PRECAUTIONS
Installing or operating this equipment without rst understanding proper installation and
operation procedures could lead to serious property damage, personal injury or even
death. Always read and fully understand all installation and operation manuals before
installing or operating this equipment. Contact Premium Supply with any questions.
DANGER
!
Installation of the EZ Lifter hydraulic jacks requires the trailer to be
raised and supported by independent means (i.e., by means other than the mechani-
cal jacks installed on the trailer) during jack installation or maintenance. It is the user’s
responsibility to ensure that the trailer is safely supported by means independent of the
mechanical jacks installed on the trailer during the installation or any maintenance
process(es).
Premium Supply
Greenville, Texas
7
EZ LIFTER KITS
ZJC-1-K
Double Acting Hydraulic Power Unit EZ Lifter Cylinder
Hydraulic Fittings Hydraulic Hose
Battery Cables Battery Strap
Deep Cycle Battery Hydraulic Oil
Bolts & Washers
Premium Supply
Greenville, Texas
8
ZJC-2-K
Double Acting Hydraulic Power Unit EZ Lifter Cylinders
Hydraulic Fittings Hydraulic Hose
Battery Cables Battery Strap
Deep Cycle Battery Hydraulic oil
Flow Divider Bolts & Washers
Premium Supply
Greenville, Texas
9
ZJC-1-ADS-K
Selector Valve EZ Lifter Cylinder
Hydraulic Fittings Hydraulic Hose
Deep Cycle Battery Hydraulic Oil
Bolts & Washers
Premium Supply
Greenville, Texas
10
ZJC-2-ADS-K
Double Acting Hydraulic Power Unit EZ Lifter Cylinder
Hydraulic Fittings Hydraulic Hose
Deep Cycle Battery Hydraulic Oil
Selector Valve Flow Divider
Bolts & Washers
Premium Supply
Greenville, Texas
11
EZ LIFTER JACK INSTALLATION
This installation will replace the inner parts of the trailer jack with a hydraulic cylinder. All
gears, shaft, springs and washers must be removed from inside the mechanical jack.
DANGER
!
Installation of the EZ Lifter hydraulic jacks requires the trailer
to be raised and supported by means independent of the mechanical jacks installed on
the trailer during jack installation or maintenance. It is the user’s responsibility to ensure
that the trailer is supported properly during such processes.
STEP 1
Support trailer so all load is removed from trailer jacks. The supporting structure must
be able to raise the front of the trailer high enough to remove the mechanical jack’s
inner housing and jack foot.
STEP 2
Remove jack handle and all internal gears, shafts, pins, drop leg spring and pin if
equipped. As shown in the illustration below. DO NOT remove interior welded
plate.
DO NOT remove
this plate welded
to inside of outer
housing.
Remove all parts
Outer
Housing
Inner
Housing
Jack
Foot
Premium Supply
Greenville, Texas
12
STEP 3
Install cylinder in inner part of jack housing.
BB
Rod sleeve oset
to this side.
Use supplied 5/8-18x1 1/2
hex bolt, lock washer and
washer here.
Premium Supply
Greenville, Texas
13
AA
Step 4
Measure from bottom of outer housing to bottom of plate.
Measure and record
this distance on outer
housing.
Mark line on outside of
outer housing at this same
measurement.
Premium Supply
Greenville, Texas
14
Step 5
Place drilling decal on outer housing and using a 1 1/4” hole saw drill side of jack hous-
ing at circles on decal. These are clearance holes for hydraulic hoses.
Mark Line
Decal
Premium Supply
Greenville, Texas
15
Step 6
Insert hydraulic cylinder into outer tube.
Reinstall top cap.
Make sure a washer is not
stuck to underside of this plate.
Use supplied 7/8-14x2 3/4
hex bolt, lock washer and
washer here.
Premium Supply
Greenville, Texas
16
DUAL ACTING HYD. POWER UNIT INSTALLATION
If included with the kit, mount HPU (hydraulic power unit) in a weather tight enclosure
on the trailer. See additional instructions supplied with the HPU for mounting, electrical,
wireless remote and hydraulic uid requirements.
CAUTION
!
Hydraulic components that are not provided by Premium Supply and
are used in the hydraulic circuit that are incompatible with Premium Supply components
may cause damage to, or failure or mailfunction of, the direct push cylinder or other
components of the Premium Supply product(s). Such damage, failure or malfunction
may cause property damage, personal injury or even death, It is the purchaser’s
responsibility to verify the compatibility of components not provided by Premium Supply.
Connecting the jack to a hydraulic system with more
pressure (PSI) or ow (GPM) than is recommended by Premium Supply could cause
the jack to fail during operation. Such failure could cause property damage, personal
injury, or even death. Ensure that you have pressure that does not exceed tolerances
and limits stated for your Premium Supply product(s)/component(s), and that there is
no restriction or issue concerning ow before operation. Consult Premium Supply if
you are unsure about the limits, capacities and/or tolerances of your hydraulic system.
WARNING
!
Adjusting the hydraulic pressure to exceed the recommended
limits or setting could cause the jack to fail during operation. Such failure could cause
property damage, personal injury, or death. Pressure should ONLY be adjusted by a
trainder and qualied technician or mechanic, and should never exceed stated limits or
settings of components used.
Hydraulic System Pre-Operation
The hydraulic system supplied by Premium Supply consists of components (pump,
valves, reservoir, hoses, cylinder, etc.) that are designed to be compatible with each
other.
All Premium Supply’s liability and warranty will be voided if determined by Premium
Supply that substituted hydraulic components (i.e., hydraulic components not
provided by Premium Supply as part of the kit) were used and such components
were incompatible with components of the kit provided by Premium Supply.
EZ Lifter hydraulic jack parameters are shown below. These are listed as a general
guide to ensure proper compatibility (when using other hydraulic components). If you
have any questions about component compatibility, please contact Premium Supply
before installation, use or maintenance.
Maximum Working Pressure---3200 PSI
Hydraulic Port Type--#6 JIC
WARNING
!
Premium Supply
Greenville, Texas
17
HYDRAULIC POWER AND HOSE INSTALLATION
Battery Hookup HPU
WARNING
!
Shorting of the electrical system brought about by installation, servicing
or repairing battery related connection and electrical components can cause sparks,
ignition of combustible material and/or re which in turn can lead to property damage,
personal injury or death. ALWAYS disconnect the battery prior to installing, servicing, or
repairing power unit.
Mount battery in a weather tight enclosure on the trailer. See additional instructions sup-
plied with the HPU for mounting, electrical and hydraulic uid requirements.
It is highly recommended that the trailer battery be kept charged using one of the Pulse-
tech products shown on Premium supply website at http://www.premium-supply.com/
Premium Supply
Greenville, Texas
18
Hose Connections for Kit ZJC-1-K
Connect to “A” port on HPU
Connect to “B” port on HPU
Premium Supply
Greenville, Texas
19
Hose Connections for Kit ZJC-2-K
Connect to “A” port on HPU
Connect to “B” port on HPU
Flow Divider
Premium Supply
Greenville, Texas
20
Hose Connections for Kit ZJC-1-ADS-K
Existing double
acting pump
Existing trailer cylinder
and lines
Connect to “A” port on
HPU
Connect to “B” port on
HPU
Selector
Valve
This manual suits for next models
3
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