Freedom MK4 Manual

MODELS MK4 4 TON, MK10 10 TON & MK20 20 TON CAPACITY
COLLISION/MAINTENANCE REPAIR KITS
SETUP • OPERATING • MAINTENANCE INSTRUCTIONS
BEFORE USING THIS DEVICE, READ THIS MANUAL
COMPLETELY AND THOROUGHLY, UNDERSTAND ITS
OPERATING PROCEDURES, SAFETY WARNINGS AND
MAINTENANCE REQUIREMENTS. FAILURE TO DO SO COULD
CAUSE ACCIDENTS RESULTING IN SERIOUS OR FATAL
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
The use of collision/maintenance repair kits is subject to certain
hazards that cannot be prevented by mechanical means, but only
by the exercise of intelligence, care, and common sense. Due to
the fact the use and versatility of collision/maintenance repair kits
is limited only by the imagination and ingenuity of its operator,
Freedom cannot be responsible for product damage or personal
injury due to faulty operator judgement or improper use or setup
of the equipment. It is therefore essential to have owners and
personnel involved in the use and operation of equipment who
are careful, competent, trained, and qualied in the safe operation
of the equipment and its proper use. Examples of hazards are
dropping, tipping, or slipping of motor vehicles or their components
caused primarily by improperly securing loads, overloading, o󰀨-
centered loads, and improper setups.
It is the responsibility of the owner to make sure all personnel read
this manual prior to using this kit. It is also the responsibility of the
kit owner to keep this manual intact and in a convenient location
for all to see and read. If the manual is lost or not legible, contact
Freedom Industrial Hydraulics for a free replacement. If the
operator is not uent in English, the product and safety instructions
shall be read to and discussed with the operator in the operator’s
native language by the purchaser/owner or his designee, making
sure that the operator comprehends its contents.
WARRANTY
This product is covered by a Limited Lifetime Warranty. For details
see the back cover of Freedom’s product catalog.
IMPORTANT: READ THESE INSTRUCTIONS BEFORE OPERATING
WARNING
• The kit owner is responsible for the kit being installed and used
in accordance with OSHA, state, and local safety standards.
• Wear protective eye wear when performing work.
• Do not use the kit beyond its rated capacities. Capacity ratings
di󰀨er according to the rams, extension tubes and adapters
being used. Wedge rams are rated at 1/2 ton capacity. Use of
o󰀨set attachments like ram toes and plunger toes reduce the
kit’s rated capacity 50%. For each extension tube used in a
setup, the rated capacity is reduced another 50%. Example:
Using two extension tubes and a at base adapter in a setup
reduces the kit capacity to 25%. If instead an o󰀨set attachment
is used the capacity will be reduced to 12-1/2%.
• When using multiple extension tubes always position the
shortest length tube farthest away from the ram.
• Make sure all attachments and extension tubes are aligned and
fully engaged before operating the pump.
• Make sure there is plenty of clearance around the ram hose
connection to allow safe and unobstructed travel of the coupling
system.
• Do not continue to pump when the ram reaches the maximum
extension. Excessive pumping could cause damage to the ram
and cylinder and/or personal injury.
• Always keep the hydraulic hose in as straight a line or arc as
possible. If the hose is bent sharply, stop and rearrange the
setup until the hose can be positioned correctly.
• Be careful not to pinch the hydraulic hose and avoid dropping
heavy objects onto the hose. If the hose leaks uid while under
pressure, the ram will retract. If the hose is cut, loss of pressure
will be immediate.
• Never use the hydraulic hose as a handle to carry the pump
and ram assembly.
• Make sure the setup is stable and secure before performing
any work. Always operate the pump slowly and carefully,
keeping an eye on the ram operation to be sure the setup
is doing its intended job correctly and that the load is safely
centered or locked in position.
• Use only Freedom components rated specically for the
Freedom kit used.
• Do not alter or modify any Freedom kit component.
SETUP
1. Each kit includes a hand pump with the hydraulic hose
connected to the pump at one end and a male quick disconnect at
the other end of the hose. Hose and ram connections are made by
inserting the male quick disconnect at the end of the hose into the
female quick disconnect in the ram. Push the quick disconnects
all the way together and screw the threaded collar of the female
disconnect all the way onto the externally threaded portion of the
male disconnect. It is not necessary to use pliers to tighten the
threaded collar.
2. There are two di󰀨erent methods of connecting extension tubes
and adapters. Kit models MK4 and MK10 are designed with “Quick-
Lock” connections where extension tubes, adapters and rams slip
t together. Kit model MK20 includes threaded connections. Make
sure all “Quick-Lock” and threaded connections are fully engaged
before using.
3. The model MK20 kit includes a vented hydraulic pump. The
vent screw is located in the top rear end of the pump’s reservoir.
The vent screw must be opened by turning it in a counterclockwise
direction two full turns before operating the pump.
Note: Revision letters (A, B, C, D etc.) after model numbers have been omitted as they do not a󰀨ect the setup,
operating and maintenance instructions of a particular jack unless otherwise noted.
INDUSTRIAL HYDRAULICS

OPERATING INSTRUCTIONS
Freedom collision/maintenance repair kits provide the user with an
e󰀨ective method to accomplish the following basic tasks with the
convenience of hydraulic power: spreading, bending, stretching,
pulling, clamping, pushing, lifting, pressing and straightening. The
basic kit consists of a hand operated portable pump, hydraulic
hose, ram(s), extension tubes and adapters. The wide range
of setup combinations for specic job requirements makes it
impossible to document every conceivable application.
1. Study the type of work to be done and determine the components
(ram, extension tubes, adapters) needed for the setup.
2. Make sure all threaded components are free of dirt, dust, nicks,
cuts, etc. Chase or le threads as needed for smooth threading
operation. Always use the threaded protector ring on all ram
cylinders when the threads are not being used.
3. The pump can be operated in a horizontal position or in a
vertical position with the hose pointing down. Rams can be used
in any position provided the setup is safe and secure.
4. Once the kit components are properly connected and are
positioned in the setup, turn the pump’s release valve in a
clockwise direction until hand tightened. Slowly operate the
pump handle so the ram is extended to meet the load. Observe
the pressure gauge being sure not to exceed the maximum force
to be applied. At the same time make sure extension tubes and
attachments (in-line or o󰀨-center) are stable and secure. Continue
to activate the pump unless it is evident the setup is becoming
unstable. If the setup becomes unstable, turn the pump’s release
valve in a counterclockwise direction to remove the ram pressure
and then adjust or change the setup accordingly. NOTE: All rams
have return springs that return them to their retracted positions
when the pump’s release valve is opened. The pump is equipped
with an overload system that will send the oil back into the pump
reservoir if the system is overloaded. Stop pumping and release
the load if the system is overloaded.
5. After work is completed, turn the pump’s release valve slowly in
a counterclockwise direction to release pressure from the ram.
6. IMPORTANT: Make sure the ram is completely retracted before
disconnecting the hose from the ram.
7. The air quick disconnect ttings are repeatedly disconnected
and exposed to shop or work place oors that contain dirt or debris.
It is important to use the dust caps provided on the male and female
air quick disconnect ttings immediately after disconnecting them
to prevent dirt and debris from entering the hydraulic system.
REPAIR SERVICE
If your Freedom product requires service or repair, contact the
Freedom Customer Service Department for the location of the
nearest Freedom Authorized Service Center.
Freedom Industrial Hydraulics
226 NW Platte Valley Dr.
Riverside, MO 64150
[phone] • Fax: [phone]
www.freedomhydraulics.com
It will be necessary to provide the Freedom Authorized Service
Center with a copy of the bill of sale if requesting warranty repair. If
the authorized service center determines your product is eligible for
warranty repair, the repair will be made at no charge and returned
freight prepaid. The cost of non-warrantable service, repair, and
return freight is the customer’s responsibility.
1. Always store the kit in its case in a well protected area where
it will not be exposed to inclement weather, corrosive vapors,
abrasive dust, or any other harmful elements. The kit must be
cleaned of water, snow, sand, or grit before using.
2. A thin coat of general purpose grease must be applied to the
external threads of all applicable components. A general purpose
grease must be applied to the pump’s pump linkage, not the pump
piston.
3. IMPORTANT: In order to prevent seal damage and hydraulic
failure, never use alcohol, hydraulic brake uid, or transmission oil
in the pump. Use Chevron Hydraulic Oil AW ISO 32 or its equivalent
Unocal Unax AW 150.
4. Every kit owner is responsible for keeping the kit label clean
and readable. Use a mild soap solution to wash external surfaces
of the kit but not any moving hydraulic components.
5. Do not attempt to make any repairs unless you are a qualied
repair person that is familiar with this equipment.
PREVENTATIVE MAINTENANCE
MK4 / MK10 / MK20
SETUP (Continued)
4. Sometimes air gets trapped in the hydraulic system when the
hose is rst hooked up to the ram. An air bound hydraulic system
feels spongy when pumped and sometimes the pump will not
pump in full incremental pump strokes.
PURGING AIR FROM THE HYDRAULIC SYSTEM
a. Open the release valve on the side of the hydraulic
block portion of the pump by turning it two full turns in a
counterclockwise direction.
b. Activate the pump handle up and down about 15 times.
c. Close the release valve by turning it in a clockwise direction
until tight.
d. Activate the pump handle until the ram is extended all the
way out.
e. If the condition remains, repeat steps “a” through “d” until all
air is purged from the system.
6. Some setup components are rated less than the capacity of the
pump and ram. Use a pressure gauge to monitor the force being
applied.