Tomahawk eJXPC50 User manual

eJXPC50
ELECTRIC PLATE COMPACTOR Operations Manual
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Table of Contents
1. SAFETY INFORMATION
- Fire Safety
- Operating Safety
- Service Safety
- Electric Motors
2. EQUIPMENT DATA
- Product Diagram
- Compactor Specifications
3. COMPACTION
- Reasons for Compaction
- Compaction Specification
- Applications
4. OPERATION
- Pre Start Checks
- Operating Instructions
- Starting the Motor
- Stopping the Motor
5. SERVICE & MAINTENANCE
- Maintenance Record
- Replacement Parts
- Storage
6. TROUBLESHOOTING
7. WARRANTY
- Warranty Claims
8. MORE COMPACTION TIPS
9. CATALOG AND COUPON
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Register Your Equipment
Thank you for purchasing TOMAHAWK equipment! Your product is covered by the
TOMAHAWK Warranty policy, but in order to activate your warranty, we need you to register
your product. In addition to activating your equipment warranty, product registration will
grant you access to important product updates, streamlined customer service and more.
INCLUDED WITH YOUR REGISTRATION
☑ Equipment Warranty Activation
☑ Product Updates
☑ Streamlined Customer Service
☑ Excusive Discounts and Sales
STEPS TO REGISTER YOUR EQUIPMENT
1. Visit www.tomahawk-power.com
2. Choose “Product Registration” at the bottom of the page
3. Enter your equipment’s serial number to get started
4. Provide all required information
5. Submit Registration
Equipment Resources
Tomahawk Customer Service doesn’t stop at checkout. We understand to keep a job-site
running smoothly - the proper equipment, spare parts, instruction manuals, and more are
needed at the drop of a hat. Visit www.tomahawk-power.com to gain access to the incredible
resources below.
How To Video Library
More of a visual person? Visit our Video Library for equipment
assembly instructions, troubleshooting tips, and more!
Found on each product listing or the Service Videos Page
Manual and Assembly Guide Library
Visit our Manual Library if you are looking for a lost
operations manual or a particular spare part?
Found on each product listing or the Tomahawk Manuals Page
Service Requests
In need of a quick fix or a service center referral? Submit a
Service Request and a Tomahawk Technician will respond
shortly to get you the help you need.
Choose “Service Request” at the bottom of www.tomahawk-power.com

This manual provides information and procedures to safely operate and maintain this
model. For your own safety and protection from injury, carefully read, understand and
observe the safety instructions described in this manual.
Keep this manual or a copy of it with the machine. If you lose this manual or need an addi-
tional copy, please contact Tomahawk Power LLC or visit www.tomahawk-power.com This
machine is built with user safety in mind; however, it can present hazards if improperly
operated and serviced. Follow operating instructions carefully. If you have questions about
operating or servicing this equipment, please contact Tomahawk Power.
The information contained in this manual is based on machines in production at the time
of publication. Tomahawk Power reserves the right to change any portion of this informa-
tion without notice.
No part of this publication may be reproduced in any form or by any means, electronic or
mechanical, including photocopying, without express written permission from Tomahawk
Power.
Any type of reproduction or distribution not authorized by Tomahawk Power represents an
infringement of valid copyrights and will be prosecuted. We expressly reserve the right to
make technical modifications, even without due notice, which aim at improving our ma-
chines or their safety standards.
1. Safety Information
This manual contains DANGER, WARNING, CAUTION, and NOTE callouts which must be
followed to reduce the possibility of personal injury, damage to the equipment, or improp-
er service.
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 a 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 in minor or moderate injury.
DANGER
WARNING
CAUTION
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1.1 Fire Safety
If your machine catches fire, turn off the electric supply. Using a dry powder or C02 fire
extinguisher, put out the fire. If the fire cannot be put out, keep away and call the fire
departement. If you are in any doubt about the safety condition of your machine, please
consult Tomahawk Power.
1.2 Operating Safety
Familiarity and proper training are required for the safe operation of equipment!
Equipment operated improperly or by untrained personnel can be dangerous! Read
the operating instructions contained in both this manual and the engine manual and
familiarize yourself with the location and proper use of all controls. Inexperienced operators
should receive instruction from someone familiar with the equipment before being allowed
to operate the machine.
1.2.1 NEVER allow anyone to operate this equipment without proper training. People
operating this equipment must be familiar with the risks and hazards associated with it.
1.2.2 NEVER use accessories or attachments for this equipment, which are not
recommended by TOMAHAWK POWER. Damage to the rammer and/or injury to user may
occur.
1.2.3 NEVER leave machine running unattended.
1.2.4 ALWAYS be sure operator is familiar with proper safety precautions and operation
techniques before using machine.
1.2.5 ALWAYS wear hearing protection when operating equipment.
1.2.6 ALWAYS wear protective clothing appropriate to the job site when operating
equipment.
1.2.7 ALWAYS wear hearing protection when operating equipment.
1.2.8 ALWAYS store equipment properly when it is not being used. Equipment should be
stored in a clean, dry location out of the reach of children.
1.2.9 ALWAYS operate machine with all safety devices and guards in place and in working
order. DO NOT modify or remove safety devices. DO NOT operate machine if any safety
devices or guards are missing or inoperative.
1.2.10 ALWAYS read, understand, and follow procedures in Operator's Manual before
attempting to operate equipment.
WARNING

WARNING
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1.3 Service Safety
For your own personal protection and for the safety of those around you, please read
and ensure you fully understand the following safety information. It is the
responsibility of the operator to ensure that he/she fully understands how to operate
this equipment safely. If you are unsure about the safe and correct use of the eJXPC50 Plate
Compactor, consult your supervisor.
1.3.1 DO NOT attempt to clean or service machine while it is running. Rotating parts can
cause severe injury.
1.3.2 ALWAYS replace worn or damaged components with spare parts designed and
recommended by Tomahawk Power.
1.3.3 ALWAYS keep machine clean and labels legible. Replace all missing and hard-to-read
labels. Labels provide important operating instructions and warn of dangers and hazards.
1.3.4 This equipment is heavy and must not be lied single-handedly. Must be listed with
two people or use suitable liing equipment.
1.3.5 Cordon off the work area and keep members of the public and unauthorized personnel
at a safe distance.
1.3.6 Personal Protective Equipment (PPE) must be worn by the operator whenever this
equipment is being used.
1.3.7 Make sure you know how to safely switch this machine OFF before you switch it ON in
case you get into diffculty.
1.3.8 Always switch OFF and unplug the motor before transporting, moving it around the
site, or servicing it.
1.3.9 During use, the motor becomes very hot, allow the motor to cool before touching it.
Never leave the motor running and/or unattended.
1.3.10 NEVER remove or tamper with any guards fitted, they are there for your protection.
Always check that guards are in proper condition, if any are damaged or missing, DO NOT
USE THE MACHINE until the guard has been replaced or repaired.
1.3.11 NEVER pull or guide the machine using the cable and never pull on the cable to
diconnect the plug.
1.3.12 DO NOT operate the machine when you are ill, feeling tired, or when under the
influence of alcohol or drugs.
1.3.13 Ensure that any trailing cable is protected against damage and not liable to be tripped
over or trapped underneath the machine.
1.3.14 DO NOT use the Motor Guard as a Liing Point.
1.3.15 DO NOT Jet Wash the machine as this could result in serious injury or even death!
1.3.16 DO NOT use this machine in wet conditions. The electrical components of the
machine NEVER be exposed to water or liquid of any kind as this could result in serious
injury or even death!

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1.4 Electric Motors
All portable electric appliances are dangerous if abused. This machine will only operate on
one voltage. Check the power supply to ensure it corresponds to the voltage as stamped on
the motor. Make sure that the motor is switched OFF before you plug it into the power supply.
When using a portable transformer it must have a minimum output of 3.3kw and be
continuously rated. The symbols on the ON/OFF switch are 0=OFF and I=ON in accordance
with international standards.
1.5 Plugs
The eJXPC50 Plate Compactor is intended for DIY or site usage, the following plug types are
supplied/fitted to the product: 15 amp rated 120 volt plug type.
GREEN / YELLOW = GROUND, BLUE = NEUTRAL, BROWN = LIVE
The wire which is colored Green and Yellow must be connected to the terminal in the plug
marked E or colored Green and Yellow. The wire which is colored Brown must be connected
to the terminal in the plug marked L or colored Red. The wire which is colored Blue must be
connected to the terminal in the plug marked N or colored Black. Always ensure before
connecting to the supply that the supply voltage is the same as the rated voltage marked on
the motor
1.6 Extension Cables
If you need to use an extension cable it must be no longer than 25 metres (82 feet) in length.
The wire section must be 2.5mm2 on 240v and 2.5mm2 on 120v. Ensure that the extension
cable is carefully laid out avoiding liquids, sharp edges and places where vehicles might run
over it. Avoid allowing the extension cable to be trapped underneath the plate compactor.
Unroll it fully or it will overheat and could catch fire. Make sure that any extension cable
connections are dry and safe.
1.7 NVR - No Volt Release
The motors which are fitted to the machine are fitted with a NVR (No Volt Release) Switch.
This mean that if the power fails, the motor will not automatically restart when the power is
restored. The machine will need to be manually restarted.
DO NOT use an extension cable between the transformer and the power
supply. Always ensure that the cable between the 120v machine and
transformer is a minimum length of 10. Ensure cable is fitted with cable clip
to the operating handle at all times.
WARNING
THIS PRODUCT MUST BE GROUNDED
IMPORTANT: The wires in the mains lead are colored in accordance with the
following code:
WARNING

1.8 Health and Safety
1.8.1 Vibration
Some vibration from the compacting operation is transmitted through the handle to the
operator's hands. Refer to specifications & technical data for vibration levels and usage
times (recommended maximum daily exposure time). DO NOT exceed the maximum usage
times.
1.8.2 PPE (Personal Protective Equipment)
Suitable PPE must be worn when using this equipment i.e. Safety Goggles, Gloves, Ear
Protection, Dust Mask, and Steel Toe capped footwear (with anti-slip soles for added
protection). Wear clothing suitable for the work you are doing. Always protect skin from
contact with concrete.
1.8.3 Dust
The compaction process can produce dust, which may be hazardous to your health. Always
wear a mask that is suited to the type of dust being produced.
2. EQUIPMENT DATA
2.1 Product Diagram
1. Electric Motor
2. Vibrator Unit Oil Plug
3. Vibrator Unit
4. On / Off Switch
5. Operating Handle
6. Belt Guard
7. Hand Liing Point
8. Hand Liing Point (Strut)
9. Motor Guard
10. Cable Strorage Hook
11. Power Cable
8
DO NOT use a Mechanical Hoist on the Hand Liing Points (No's 7 & 8) and
Motor Guard (No. 9).
WARNING

2.2 Product Dimensions
2.3 Compactor Specifications
9
Model eJXPC50H
Power (HP / kW) 2.0 / 1.5
Motor RPM 2800
Nominal Voltage (v) 120
Full Load Current (A) 14.2
Motor Protection Rating IP44
Vibrator Force (kN) 9.4
Frequency (Hz) 60
Maximum Travel Speed (m/min) 24
Usage Time (Mins) 180
Noise (dBA) 104
Weight (lbs / kg) 110 / 50

3. COMPACTION
3.1 Reasons for Compaction
Soil, which has been disturbed or new infill, subbase and blacktop, will have small voids or
air pockets which, if not compacted, will lead to one or more problems occurring.
3.1.1 As traffic crosses the surface of an uncompacted area, the material is compressed. This
leads to subsidence of the top surface as the material fills the voids.
3.1.2 A similar situation occurs with static loads on uncompacted ground. The load (e.g. a
building) will sink.
3.1.3 Materials with voids are more susceptible to water seepage, leading to erosion. Water
ingress may also cause the soil to expand during freezing temperatures and contract during
dry spells. Expansion and contraction is a major cause of damage to building foundations
and normally leads to the structure requiring underpinning.
Compaction increases the density of the material and therefore increases its load bearing
capacity. Reduces air voids and therefore reduces the risk of subsidence, expansion and
contraction, due to ingress of water.
3.2 Compaction Specification
Various methods have been employed in the past to specify the compaction required for
various applications. The factors to consider are, material properties, layer thickness,
pressure applied, vibration and number of passess. Greater understanding of how
compaction works has lead to new compaction specifications being introduced.
3.3 Applications
Applications/materials fall into three categories:
3.3.1 Cohesive materials (less than 20% granular) e.g clay, silt & heavy soils.
3.3.2 Granular materials (more than 20% granular) e.g hard core, sand & light soils.
3.3.3 Bituminous materials e.g asphalt (tarmac), cold lay (bitumin emulsion products).
4. OPERATION
4.1 Pre Start Checks
The following pre start-up inspection must be performed before the start of each work
session or aer every four hours of use, whichever is first. Please refer to the service section
for detailed guidance. If any fault is discovered, the eJXPC50 plate compactor must not be
used until the fault is rectified.
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4.2 Operating Instructions
4.2.1 Take the compactor to where it is needed.
4.2.2 NEVER leave the motor running whilst transporting or moving the Electric Plate
Compactor, even if it is only a short distance.
4.2.3 Having carried out the checks listed in the Pre Start Checks section, you may start the
motor.
4.2.4 Switch the machine ON and use the control handle to steer or turn the Electric Plate
Compactor. This will not only cause the baseplate to vibrate but will also cause it to travel
forward. During normal operation you should not have to push the eJXPC50 but allow it to
travel at its own pace.
The speed of travel will be determined by the condition of the surface being compacted. If
the surface to be compacted is on a slope, great care must be taken when controlling the
compactor’s direction of travel. If necessary, use a suitable rope attached to the eJXPC50 at
a low point on the chassis, to allow a helper to take part of the eJXPC50's weight. Work up
and down a slope not across.
4.2.5 Work the eJXPC50 over the surface in an organized pattern until the required
compaction has been achieved.
Where there are a number of different layers to be compacted on top of each other,
compact each layer individually.
4.3 Starting the Motor
1. Plug into power supply.
2. Depress the GREEN Button (I) to start the
machine (Fig B).
4.4 Stopping the Motor
1. Depress the RED Button (O) to stop the
machine (Fig A).
FIG A
FIG B
NEVER pass over the electric cable with the compactor during operation.
WARNING
DO NOT use a Mechanical Hoist on the Hand Liing Points
Transporting the compactor is a 2 person operation.
Use the provided Hand Liing Points.
WARNING
Make sure that the plate is unplugged from the power source prior to carrying
out first steps or the visual inspection!
WARNING

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5. SERVICE & MAINTENANCE
5.1 Maintenance
The Electric Plate Compactor is designed to give many years of trouble free operation. It is
recommended that an approved TOMAHAWK POWER dealer or service center carries out all
major maintenance and repairs. Always use genuine TOMAHAWK POWER replacement parts,
the use of spurious parts may void your warranty. Before any maintenance is carried out on
the machine, switch off the motor and disconnect the power supply.
Always set the Electric Plate Compactor on level ground to ensure any fluid levels will be
correctly read. Only use recommended oils (see chart below).
5.2 Running In Period
The vibrator sha case oil must be replaced aer the first 100 hours use, then aer every 500
working hours. For detail on vibrator sha case oil replacement, see 'Vibrator unit'. The belt
tension should be checked aer 4 hours use.
5.3 Cleaning
This is an electrical appliance. During cleaning, the electrical components of this machine
MUST NEVER be exposed to water or liquid
of any kind as this could result in serious injury or even death!

5.4 Maintenance Record
Preventative maintenance and routine service are essential to the long life of your
equipment. Reading through this manual thoroughly, you will find that you can do some of
the regular maintenance yourself. However, when in need of parts or major service, be sure
to see your dealer. For your convenience we have provided this space to record relevant data
about your plate compactor.
5.5 Replacement Parts
For replacement parts and technical questions visit www.tomahawk-power.com or scan
the QR code on the front of this manual.
• Not all equipment components are available for replacement. The illustrations within this
manual are a convenient reference to the location and position of parts in the assembly
sequence.
• When ordering parts, the following will be required: model number, serial number/lot date
code, and description.
• The manufacturer reserves the right to make design changes and/or improvements to
product lines and manuals without notice.
5.6 Storage
The compactor should be stored on level ground, aer the motor and machine have cooled
down. Be sure to secure the compactor as necessary to avoid it from falling down.
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Problem Cause Solution
Fuse or Circuit Breaker tripped Replace Fuse or reset the breaker
Stator is shorted or went to ground Motor will make
a humming noise and the circuit breaker or fuse will
trip
Contact Tomahawk Power
Motor overloaded or load jammed
Inspect to see that the load is free. If free, Contact
Tomahawk Power.
Capacitor (on single phase motor) may have failed Contact Tomahawk Power
Starting switch has failed Contact Tomahawk Power
Voltage drop
If voltage is less than 10% of the motor's rating
contact power company or check if some other
equipment is taking power away from the motor or
Contact Tomahawk Power.
Load increased
Verify the load has not changed. Verify equipment
hasn't got tighter. If fan application verify the air low
hasn't changed or Contact Tomahawk Power
Defective capacitor Contact Tomahawk Power
Faulty stationary switch Contact Tomahawk Power
Bad bearings Contact Tomahawk Power
Voltage too low
Make sure that the voltage is within 10% of the
motor's nameplate rating. If not, contact power
company or check if some other equipment is
taking power away from the motor or Contact
Tomahawk Power
Load too high
Verify that the load is not jammed. If motor is a
replacement, verify that the rating is the same as
the old motor. If previous motor was a special
design, a stock motor may not be able to duplicate
the performance. Remove the load from the motor
and check motor doesn’t trip.
Ambient temperature too high
Verify that the motor is getting enough air for proper
cooling. Most motors are designed to run in an
ambient temperature of less than 40°C. (Note: A
properly operating motor may be hot to the touch.)
Protector may be defective Contact Tomahawk Power
Winding shorted or grounded Contact Tomahawk Power
The motor
makes a loud
rubbing or
grinding
noise
Damage to internal workings Contact Tomahawk Power
Drive belt tension loose Adjust belt tension
Drive failure Contact Tomahawk Power
Vibrator failure Contact Tomahawk Power
Lack of lubrication Use water
Over compaction Remove and relay
Layer thickness too deep Remove some of the material
Moisture content too high or too low Remove material and adjust
Asphalt
adhering to
plate
Bituminous
surface
laking
(laminating)
Low travel
speed (plate
sinking)
Motor fails to
start
Motor runs
but dies
down
Motor takes
too long to
accelerate
Motor
overload
protector
continually
trips
Unit will not
vibrate
6. TROUBLESHOOTING

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7. WARRANTY
Your new Electric Single Direction Plate Compactor is warranted to the original purchaser for
a period of one-year.
(12 months) from the original date of purchase. The Tomahawk Power warranty is against
defects in design, materials and workmanship.
The following are not covered under the warranty:
1. Damage caused by abuse, misuse, dropping or other similar damage caused by or as a
result of failure to follow assembly, operation or user maintenance instructions.
2. Alterations, additions or repairs carried out by persons other than TOMAHAWK POWER or
their recognised agents.
3. Transportation or shipment costs to and from TOMAHAWK POWER or their recognised
agents, for repair or assessment against a warranty claim, on any machine.
4. Materials and/or labor costs to renew, repair or replace components due to fair wear and
tear.
The following components are not covered by warranty.
• Drivebelt/s
• Engine air filter
• Engine spark plug
TOMAHAWK POWER and/or their recognised agents, directors, employees or insurers will not
be held liable for consequential or other damages, losses or expenses in connection with or
by reason of or the inability to use the machine for any purpose.
Warranty Claims
Before submitting any warranty claim, your Tomahawk Power Electric Single Direction Plate
Compactor should be registered through www.tomahawk-power.com. Follow the steps on
page 3 to complete the equipment registration. Aer registration is complete, all warranty
claims should firstly be directed to Tomahawk Power through the online Service Request
form found at www.tomahawk-power.com/pages/service-request.

16
8. MORE COMPACTION TIPS
8.1 Soil Drop Test: Soil preparedness refers to the “wetness” of the dirt or soil. Soil needs
to be 50% dry and 50% wet, before starting compaction. A simple “hand test” can deter-
mine this. Pick up a handful of soil with your hand and squeeze the dirt. Observe whether
the soil is powdery or if it breaks apart when dropped. If the soil does break apart, it means
that it is too dry. If the soil keeps together in one piece when dropped, it is ready for com-
paction.
8.2 Soil Testing: Testing: The function of this step is to measure the density of an aggregate
material to ensure the increase of density when driving out air. At a low moisture content
level, there are more soil particles assembling together. In order to determine if the soil is
compacted properly, there are several methods.
8.2.1 Soil Testing: Test strips are useful to determine the method of compaction and
understand how many passes of your plate compactor are needed to achieve the optimum
compaction. Every layer of compacted soil meets a specific percentage on the proctor
curve. Through soil testing, it is possible to identify optimum moisture. Soil testing mea-
sures the soil density compared to the degree of compaction specifications, as well as the
effect of the moisture.
A common laboratory method called the Proctor Compaction Test can be used to deter-
mine the optimal moisture content for a given soil type. The goal of this method is to
understand the soil’s maximum dry density. A second method of soil testing is known as
the California Test 216 and is used to find the relative compaction of untreated and treated
soils.
Four factors account for optimum compaction including li thickness, pressure, and soil
moisture content. During the compaction process, the soil's moisture adds density and
lubricates soil particles, until there is a maximum dry unit weight without voids in the soil.
The table below explains the different outcomes and properties of fill materials.

17
8.3 Compaction Terms
8.3.1 Cohesive soils: Clays and mixes have a particular particle size of less than .003” or
.002” and are typically classified as cohesive soils. This type of soil is primarily used for
retaining pond beds and mound fills. These soils are dense due to the strongly bound mo-
lecular attraction. Cohesive soils and water will not mix easily, but only once the soils are
moist it will feel sticky.
8.3.2 Granular soils: These soils have particle sizes of .003” or greater, like sand. Water
drains easily through the soils particles of granular soils. The larger the particles, the larger
the equipment needed to achieve lower frequencies and higher compaction force. Plate
compactors are typically the best option for compacting granular soils - however, depend-
ing on the vibration frequency and particle size, reversible plate compactors and double
drum rollers may be more appropriate for this type of work.
8.3.3 Mixed soils: Sometimes soils can be a mixture of both types, cohesive and granular.
Thus choosing the appropriate compaction equipment is more difficult. We recommend
testing your equipment to match the best machine to the desired job.

1718
8.3.4 Static force: Found in the deadweight of machines, static force applies pressure
downward on soil surfaces. As a result, soil particles compress in the topsoil layer.
8.3.5 Vibratory force: This force is engine-driven, creating a downward force, in addition to
the machine's static weight. Vibrations compress the soil material closer together to
increase density.
8.3.6 Types of compaction: There are four types of compaction that can be applied to soils
or asphalt. Each one takes place using one of the two types of the forces explained above
(static or vibratory).
A. Vibration: Periodic motion of particles with rotating weight in opposite directions
from a position of equilibrium.
B. Impact: An action of one object coming into contact with another.
C. Kneading: Force is applied by alternating movement in adjacent positions.
D. Pressure: The process of continuous physical force against solid materials.

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