Amkus EF2S-STD Guide

©Copyright AMKUS Rescue Systems, Inc. 2015-2020 LAP-002 JUNE 29, 2020 Rev05
Serial Number_______________________
Thank you for choosing AMKUS Rescue Systems. Please read this User Information Manual thoroughly. If you
have any questions, please contact your local dealer or AMKUS, Inc.
Please complete the tool registration form included with your equipment and return it to AMKUS, Inc. You may
also register your equipment on-line at amkus.com.
The serial number for your power unit is identified on the product label which is located on the yellow hydraulic
fluid reservoir. For quick reference, record the serial number on the cover of this manual. Please have the serial
number available if you need to contact your local dealer or AMKUS, Inc.
AMKUS RESCUE SYSTEMS
amkus.com
4201 Montdale Drive, Valparaiso, IN 46383-4098 USA
800-592-6587 • 219-548-5000 • Fax [phone]
EF2S-STD Power Unit
User Information Manual

©Copyright AMKUS Rescue Systems, Inc. 2015-2020 LAP-002 JUNE 29, 2020 Rev05
Important Safety Instructions
Safety
It is the responsibility of the user to insure that appropriate
protective clothing and equipment are used to provide
protection from those hazards to which personnel are
exposed or could be exposed while working with this
product. Always wear appropriate apparel!
AMKUS equipment is manufactured with superior
craftsmanship and quality that is backed by a factory
warranty. AMKUS cannot control how other manufacturers
of rescue tools rate, test and warranty their equipment.
Therefore, we do not recommend that tools other than
AMKUS be connected to our equipment. Mixing AMKUS
equipment with another manufacturer’s equipment may
cause operational problems, equipment failure or warranty
claims to be denied.
Use only AMKUS supplied
mineral base hydraulic
fluid in all AMKUS equipment.
Training
This product is designed to be used by emergency services
personnel to facilitate the extrication of victims from
entrapment. Its use should be limited to trained personnel
only. All personnel using this equipment are assumed to
have completed a course of instruction that is acknowledged
as being educationally sound by the local authority having
jurisdiction over such training. This document contains
basic operating and maintenance instructions only. Getting Started
1. Connect the tool connection hoses to the hose lines
from the AMKUS hydraulic power unit. Please note that the
male and female couplings on the hose lines leading from
the power unit should be connected to the corresponding
male and female coupling on the tool connection hoses.
To connect the couplings, twist the sleeve on the female
coupling so that the notch in the sleeve lines up with the
pin. Push the sleeve back so the pin fits into the notch.
While holding the sleeve back, push the male coupling
into the female coupling. Release the sleeve; it will spring
forward nto place. Twist the sleeve 1/4 turn so that the pin
no longer lines up with the notch. Pull on the couplings to
check that they are securely connected.
2. Check the hydraulic fluid levels. Add as appropriate.
Start the motor by moving the “ON-OFF” switch to the “ON”
position.
The EFS2-STD is a simultaneous operation power unit.
This means that two tools can be connected simultaneously
and operated either independently or simultaneously.
In order to operate a tool that is connected to the power
unit, the appropriate hose line must be charged by moving
the knobg o the corresponding selector valve to the
pressure position )in line with the hose line to which the tool
is connected). The selected tool is now operational.
Read and understand the
motor owner’s manual
before operating the motor! Failure to do so
could result in personal injury or equipment
damage!
Set-Up Procedures
Normally, AMKUS equipment is prepared and serviced by
your dealer prior to delivery. If, however, you have decided
to place the equipment into service yourself, please review
the following instructions carefully.
1. Remove equipment from the packing cartons and
carefully inspect for damage. Damage that occurs during
shipment should be reported immediately to the carrier.
2. Arrange for a qualified electrician to install the appropriate
electrical plug onto the electrical cord that came installed on
the electric motor of the power unit. Have the electrician
ensure that the electrical circuit from which the unit will
be operated is suitable for operating this unit. Refer to the
“AMKUS Power Units Electric Motor specifications” sheet
included in the documentation packer that shipped with the
power unit,
3. Next, remove the hydraulic fluid reservoir fill plug vent
cap. Fill the hydraulic fluid reservoir with approximately 2.0
gallons US (7.6 liters) of AMKUS mineral base hydraulic
fluid. The fluid should reach a level that fills approximately
1/2 of the sight gauge window. Replace the fill plug/vent
cap.
4. The power unit may be supplied either with hydraulic
hoses attached (pump hoses) or with coupling that require
extension hoses. If your unit is equipped with couplings,
attach the extension hoses to the couplings on the power
unit. In either case, connect the male and female couplings
on each of the hydraulic hose line sets, crating a loop.
5. Start the motor by moving the “ON-OFF” switch to the
“ON” position.
6. To purge air from the hydraulic hoses, charge each hose
line by moving the knob on the corresponding selector
valve to the pressure position (in line with the selected hose
line) and allow the fluid to circulate through each hose line
for at least one minute. Move each selector valve back to
the neutral position.
7. Check the level of the hydraulic fluid in the sight gauge.
Add more fluid if necessary. DO NOT OVERFILL.
8. Uncouple the male and female couplings on each
hydraulic line set to open the loop that was created earlier.
The power unit is now ready to use.
CAUTION
CAUTION
Do not use this product until you have read this manual and understand all safety and operating
instructions! Failure to comply with these warnings and instructions may result in serious injury,
disease, illness or death.

©Copyright AMKUS Rescue Systems, Inc. 2015-2020 LAP-002 JUNE 29, 2020 Rev05
Routine Maintenance for
Hydraulic Pump
Normally, you will have a maintenance agreement for
your system with your local dealer. However, if you have
decided to service the equipment yourself, please review
the following instructions carefully.
Change hydraulic fluid after each 20 hours of tool operation
(approximately every 2 years). If you suspect your hydraulic
fluid has been contaminated in any way, contact your local
dealer or AMKUS, Inc.
To change hydraulic fluid, remove the hydraulic fluid
reservoir fill plug/vent cap. Place the unit over a drain pan;
unscrew and remove the drain plug. Be careful not to lose
it! Allow the hydraulic fluid to drain. Clean and replace the
drain plug. Fill the hydraulic fluid reservoir with new AMKUS
mineral base hydraulic fluid. Replace the fill plug/vent cap.
Connect the male and female couplings on each of the
hydraulic hose line sets, creating a loop. Start the motor by
moving the “ON-OFF” switch to the “ON” position. To purge
air from the hydraulic hoses, charge each hose line by
moving the knob on the corresponding selector valve to the
pressure position (in line with the selected hose line) and
allow the fluid to circulate through each hose line for at least
one minute. Move each selector valve back to the neutral
position. Check the level of the hydraulic fluid in the sight
gauge. Add more fluid if necessary. DO NOT OVERFILL.
Uncouple the male and female couplings on each hydraulic
hose line set to open the loop that was created earlier
Check the pressure output of the power unit at each hose
line by connecting a pressure gauge to the pressure line
(the male coupling). Move the selector valve to charge the
line to which the gauge is connected. The nominal pressure
of the system is 10,500 psi. The pressure reading you
receive should be between 10,000 psi and 11,000 psi. If
you have a reading outside of that range, contact your local
dealer or AMKUS, Inc. DO NOT ATTEMPT TO ADJUST
THE PRESSURE RELIEF SETTING!
To stop the flow of hydraulic fluid to each hose line, move
the knob of the corresponding selector valve to the neutral
position (perpendicular to the hose line). The selector valve
should be in the neutral position when you are finished
with an operation or anytime you wish to stop the flow of
hydraulic fluid.
Please note that the minimum safe bend radius of the
hoses is 4 inches (101.6 mm)
When you have finished operations, stop the motor by
moving the “ON-OFF” switch to the “OFF” position.
Routine Maintenance for Hoses
After each use, hoses should be wiped clean with a light
cleaning solvent such as Simple Green®. Inspect hoses
for damage to the rubber outer cover. Damage which
exposes the wire braided reinforcement subjects the wire
to corrosion and may weaken the hose, Damaged hoses
should be replaced.
Routine Maintenance for Electric Motor
This motor has permanent lubricated bearings and normally
does not require maintenance.

©Copyright AMKUS Rescue Systems, Inc. 2015-2020 LAP-002 JUNE 29, 2020 Rev05
Troubleshooting Guide
Any problem not resolved by these suggestions may
require you to contact your local dealer or AMKUS, Inc. for
further guidance.
Problem Solution
Motor will not start
or poor motor
performance
Check owners manual troublle
shooting guide.
Fluid leaks at fitings
or hoses
Check tightness of hose fittings.
Replace damaged hoses.
Parts, Service & Technical Information
Parts, service and technical information can be obtained
from your local AMKUS dealer or by contacting AMKUS,
Inc. 1-880-592-6587 or [email protected]
Maintenance Records
It is the responsibility of the user to keep maintenance
records for each component of the rescue system.
Maintenance shall be performed in accordance with the
recommendations as outlined in this manual.
Routine Maintenance for Couplings
Couplings should be kept free of dirt and contaminants.
They may be most easily cleaned by immersing in, or
scrubbing with, a petroleum based solvent such as SAFE-
SOL® 140. Couplings should then be lubricated with a
non-water based lubricant such as WD-40®. The rubber
dust caps which are provided with the tools should also be
cleaned periodically. Be aware that while the couplings may
be clean, the dust caps will accumulate dirt during use. Do
not cover a clean coupling with a dirty dust cap.
General Maintenance and Storage
1. Always store the unit in a clean dry space.
2. Never store tools or power unit hoses under
pressure.
After each use:
1. Check to see that important markings are legible.
Contact your local dealer or AMKUS, Inc. for
replacement labels.
2. Wipe hoses, fittings and couplings clean (see
routine maintenance for hoses and couplings).
3. Inspect the power unit, hoses, fittings and
couplings after each use for damage, leakage
and excessive wear.
4. If damage or excessive wear is noticed, do not
use the tool; contact your local dealer or AMKUS,
Inc.
Tools do not operate Check to see that the power
unit is running.
Check to see that the line is
charged.
AMKUS RESCUE SYSTEMS
amkus.com
4201 Montdale Drive, Valparaiso, IN 46383-4098 USA
800-592-6587 • 219-548-5000 • Fax [phone]
Rescue tools lack
power or speed
Check hydraulic fluid level in
power unit reservoir.