McElroy DynaMc 28 User manual

Manual: 897701 Revision: B 02/19
28 and 412 Rolling
Hand Pump Fusion
Machines
Operator’s
Manual
Original Language: English

This product and other products
could be protected by patents or
have patents pending. All the latest
patent information is available at
patent.mcelroy.com
Cancer and Reproductive Harm -
www.P65warnings.ca.gov
8163361

Introduction
Thank you for purchasing this McElroy
Product
The McElroy Rolling 28 and 412 HP fusion machines are
manually pumped hydraulically operated fusion machines
designed to butt fuse polyethylene pipe.
If fusing other thermoplastic pipe materials, refer to the
pipe manufacturer's fusion procedures or appropriate
joining standard.
The Rolling 28 HP fuses 2" IPS through 8" DIPS (63 mm
- 200 mm).
The Rolling 412 HP fuses 4" IPS through 12" DIPS
(110mm - 340mm)
With reasonable care and maintenance, this machine
will give years of satisfactory service.
Before operating this machine, please read this manual
thoroughly, and keep a copy with the machine for future
reference. This manual is to be considered part of your
machine.
TX04101-6-28-10
McElroy University
For more than 30 years, McElroy has been the only
pipe fusion machine manufacturer to continuously
offer advanced training. Course offerings are meant to
enhance your efficiency, productivity and safety in the
proper use of McElroy machines. McElroy University
classes are structured so that the skills learned and the
machines used in each class closely match the machines
found on pipelining jobsites. We offer training at
our facility or yours. Our uniquely qualified McElroy
University course instructors offer years of industry
experience.
Tuition for each course includes lunches, course materials
and a certificate of completion. Online registration,
as well as up-to-date course offerings and dates, is
available at www.mcelroy.com/university
This manual is intended as a guide only and does not
take the place of proper training by qualified instructors.
The information in this manual is not all inclusive and
can not encompass all possible situations that can be
encountered during various operations.
MU2-03-13-14
TX04659-03-24-14

Warranty
LIMITED WARRANTY
McElroy Manufacturing, Inc. (McElroy) warrants all
products manufactured, sold and repaired by it to be
free from defects in materials and workmanship, its
obligation under this warranty being limited to repairing
or replacing at its factory and new products, within 5
years after shipment, with the exception of purchased
items (such as electronic devices, pumps, switches, etc.),
in which case that manufacturer’s warranty applies.
Warranty applies when returned freight is prepaid and
which, upon examination, shall disclose to have been
defective. This warranty does not apply to any product
or component which has been repaired or altered by
anyone other than McElroy or has become damaged
due to misuse, negligence or casualty, or has not been
operated or maintained according to McElroy’s printed
instructions and warnings. This warranty is expressly in
lieu of all other warranties expressed or implied. The
remedies of the Buyer are the exclusive and sole remedies
available and Buyer shall not be entitled to receive any
incidental or consequential damages. Buyer waives
the benefit of any rule that disclaimer of warranty shall
be construed against McElroy and agrees that such
disclaimers herein shall be construed liberally in favor of
McElroy.
RETURN OF GOODS
Buyer agrees not to return goods for any reason except
upon the written consent of McElroy obtained in advance
of such return, which consent, if given, shall specify the
terms and conditions and charges upon which any such
return may be made. Materials returned to McElroy, for
warranty work, repair, etc., must have a Return Material
Authorization (RMA) number, and be so noted on the
package at time of shipment. For assistance, inquiry shall
be directed to:
McElroy Manufacturing, Inc.
P.O. Box 580550
833 North Fulton Street Tulsa, Oklahoma 74158-0550
PHONE: [phone], FAX: [phone].
EMAIL: [e-mail]
Note: Certain repairs, warranty work, and inquiries may
be directed, at McElroy’s discretion, to an authorized
service center or distributor.
TX02486-11-4-13
DISCLAIMER OF LIABILITY
McElroy accepts no responsibility of liability for fusion
joints. Operation and maintenance of the product is the
responsibility of others. We recommend qualified joining
procedures be followed when using McElroy fusion
equipment.
McElroy makes no other warranty of any kind whatever,
express or implied; and all implied warranties of
merchantability and fitness for a particular purpose which
exceed the aforestated obligation are hereby disclaimed
by McElroy.
PRODUCT IMPROVEMENT
McElroy reserves the right to make any changes in or
improvements on its products without incurring any
liability or obligation to update or change previously sold
machines and/or the accessories thereto.
INFORMATION DISCLOSED
No information of knowledge heretofore or hereafter
disclosed to McElroy in the performance of or in
connection with the terms hereof, shall be deemed to be
confidential or proprietary, unless otherwise expressly
agreed to in writing by McElroy and any such information
or knowledge shall be free from restrictions, other than a
claim for patent infringement, is part of the consideration
hereof.
PROPRIETARY RIGHTS
All proprietary rights pertaining to the equipment or
the components of the equipment to be delivered by
McElroy hereunder, and all patent rights therein, arising
prior to, or in the course of, or as a result of the design
or fabrication of the said product, are exclusively the
property of McElroy.
LAW APPLICABLE
All sales shall be governed by the Uniform Commercial
Code of Oklahoma, U.S.A.
Register your product online to activate your
warranty:www.McElroy.com/fusion
(Copy information listed on the machine nameplate here
for your records).
Model No.
Serial No.
Date Received
Distributor

Table of Contents
Safety
Safety Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Read and Understand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
General Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Wear Safety Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Heater is Not Explosion Proof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Electric Motors are Not Explosion Proof . . . . . . . . . . . . . . . . . . . . . . . 1-2
Pipe Handling Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Units with Hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Electrical Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Crush Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Facer Blades are Sharp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Have Tires Properly Serviced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Do not Tow Fusion Machine at Speeds Greater than 5 MPH . . . . . . . . . 1-5
Heater is Hot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Fusion Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Positioning Fusion Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Overview
Theory of Heat Fusion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Introduction to the 28 and 412 Hand Pump Fusion Machines . . . . . . . . 2-2
Carriage Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Oil Reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Hydraulic Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Facer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Heater Stripper Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Insulated Heater Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Chassis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Pipe Lifts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Clamp Knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
COPYRIGHT © 2019, 2017, 2010
McELROY MANUFACTURING, INC.
Tulsa, Oklahoma, USA
All rights reserved
All product names or trademarks are property of their respective owners. All information,
illustrations and specifications in this manual are based on the latest information available
at the time of publication. The right is reserved to make changes at any time without notice.

Table of Contents
Butt Fusion Procedure
Read Before Operating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Check Oil Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Prepare Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Set up Pipe Supports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Install Clamping Inserts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Determine Fusion Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Load Pipe Into Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Face the Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Remove Facer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Position Carriage for Heater Insertion . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Check Heater Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Insert Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Heat the Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Fuse the Pipe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Open Movable Jaws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Open Fixed Jaws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Position Pipe for Next Joint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Install Next Piece of Pipe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Special Operations - In Ditch
Remove Facer from Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Remove Carriage Assembly from the Chassis. . . . . . . . . . . . . . . . . . . . 4-1
Outrigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Remove 3-Jaw Assembly from the Carriage . . . . . . . . . . . . . . . . . . . . . 4-3
Manual Facer Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Remove Top Jaws. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Lower 3-Jaw or 4-Jaw Carriage into Ditch . . . . . . . . . . . . . . . . . . . . . . 4-4
Clamp Carriage Assembly to Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Make Fusion Joint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Remove Carriage Assembly from Ditch . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Reassemble Fusion Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Special Operations - Lifting Fusion Machine
Lifting Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Lift the Machine - 28 Hand Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Lift the Machine - 412 Hand Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Table of Contents
Maintenance
Preventative Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Wash the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Check Hydraulic Fluid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Check Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Clean Jaws and Inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Clean Thrust Bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Clean Eyebolt Threads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Fasteners Must Be Tight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Facer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Facer Blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Clean Heater Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Install Butt Fusion Heater Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Adjust Heater Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Heater Indicator Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Bleed Air From Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Machine Maintenance Checklist
Fusion Machine Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Determining Fusion Pressure
Determining Fusion Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Hydraulic Fluid
Hydraulic Fluid Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Specifications
Fusion Machine Specifications: 28 Rolling Hand Pump . . . . . . . . . . . . . 10-1
Fusion Machine Specifications: 412 Rolling Hand Pump . . . . . . . . . . . . 10-2

1 - 1
Safety
Safety Alerts
This hazard alert sign appears in this manual.
When you see this sign, carefully read what it says.
YOUR SAFETY IS AT STAKE.
You will see the hazard alert sign with these words:
DANGER, WARNING, and CAUTION.
Indicates an imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
Indicates a hazardous situation which,
if not avoided, may result in minor or
moderate injury.
In this manual you should look for two other words:
NOTICE and IMPORTANT.
NOTICE: can keep you from doing something that might
damage the machine or someone's property. It may also
be used to alert against unsafe practices.
IMPORTANT: can help you do a better job or make
your job easier in some way.
¡PELIGRO!
Read and Understand
Do not operate this equipment until you have carefully read, and
understand all the sections of this manual, and all other equipment
manuals that will be used with it.
Your safety and the safety of others depends upon care and
judgment in the operation of this equipment.
Follow all applicable federal, state, local, and industry specific
regulations.
McElroy Manufacturing, Inc. cannot anticipate every possible
circumstance that might involve a potential hazard. The warnings
in this manual and on the machine are therefore not all inclusive.
You must satisfy yourself that a procedure, tool, work method, or
operating technique is safe for you and others. You should also
ensure that the machine will not be damaged or made unsafe by
the method of operation or maintenance you choose.
¡PELIGRO!
WR00051-11-30-92
WR00052-12-1-92
TX00030-12-1-92
TX02946-4-15-09

1 - 2
Safety
General Safety
Safety is important. Report anything unusual that you notice during
set up or operation.
LISTEN for thumps, bumps, rattles, squeals, air leaks, or unusual
sounds.
SMELL odors like burning insulation, hot metal, burning rubber, hot
oil, or natural gas.
FEEL any changes in the way the equipment operates.
SEE problems with wiring and cables, hydraulic connections, or other
equipment.
REPORT anything you see, feel, smell, or hear that is different from
what you expect, or that you think may be unsafe.
SAFE1ST-12-22-92
Wear Safety Equipment
Wear a hard hat, safety shoes, safety glasses, and other
applicable personal protective equipment.
Remove jewelry and rings, and do not wear loose-fitting clothing
or long hair that could catch on controls or moving machinery.
WR00053-12-2-92
TX00114-4-22-93
TX00032-4-7-93
Heater is Not Explosion Proof
This heater is not explosion proof. Operation
of heater in an explosive atmosphere without
necessary safety precautions will result in
serious injury or death.
When operating in an explosive atmosphere, the heater
should be brought up to temperature in a safe environment,
then unplugged before entering the explosive atmosphere for
fusion.
TX04467-03-24-14
WR00034-11-30-92
¡PELIGRO!
Electric Motors are Not Explosion Proof
Electric motors are not explosion proof. Operation
of these components in an explosive atmosphere
without necessary safety precautions will result in
serious injury or death.
See Section "Facer" in the Overview section for instructions on
removing brushes from facer motor.
TX02979-4-15-09
¡PELIGRO!
WR00080-4-12-93

Safety
1 - 3
Pipe Handling Safety
Do not position yourself or any other personnel under
supported or raised pipe. Pipe is heavy and could
fall unexpectedly.
Pipe that is bent can store a great amount of energy.
Do not bend and force the pipe into the machine.
A bent pipe with stored energy can generate
tremendous force when that energy is released.
It is recommended that the pipe is always held securely by either
being clamped in the fusion machine jaws or properly attached to a
lifting device.
NOTICE: Do not leave machine unattended to unauthorized
personnel. Do not allow unauthorized personnel to operate the
machine.
Keep persons that are not involved in handling pipe away from pipe
handling operations. Keep away from the pipe when the pipe and
handling equipment are in motion. When in motion, all persons
involved in handling pipe should be able to see all other persons
at all times. If any handling person is not in sight, immediately stop
moving equipment and pipe and locate that person. Do not continue
until all persons are accounted for and in sight.
Never push, roll, dump or drop pipe lengths, bundles or coils off the
delivery truck, off handling equipment, or into a trench. Always use
appropriate equipment to lift, move, and lower the pipe.
TX04882-04-18-16
WR00097-4-17-13
Units With Hydraulics
For hydraulically operated equipment, it is important to remember
that a sudden hydraulic oil leak can cause serious injury, or even
be fatal if the pressure is high enough.
Escaping fluid under pressure can penetrate the
skin causing serious injury. Keep hands and
body away from pinholes which eject fluid under
pressure. Use a piece of cardboard or paper to
search for leaks. If any fluid is injected into the
skin, it must be immediately removed by a doctor
familiar with this type of injury.
NOTICE: Wear safety glasses, and keep face clear of area when
bleeding air from hydraulic system to avoid spraying oil into eyes.
TX03077-2-16-10
WR00078-4-8-93

Safety
1 - 4
Electrical Safety
Always ensure power cords are properly
grounded. It is important to remember that you
are working in a wet environment with electrical
devices. Proper ground connections help to
minimize the chances of an electric shock.
Frequently inspect electrical cords and unit for damage. Have
damaged components replaced and service performed by a
qualified electrician.
Do not carry electrical devices by the cord.
NOTICE: Disconnect the equipment from the power source before
attempting any maintenance or adjustment.
TX02947-4-15-09
WR00055-4-7-93
WR00025-11-30-92
Crush Points
Hydraulically operated jaws are operated under
pressure Anything caught in the jaws will be
crushed. Keep all body parts out of the jaw area.
Always check pipe alignment with a pencil or
similar object.
TX03091-4-7-10
WR00012-12-4-92
Facer Blades Are Sharp
Facer blades are sharp and can cut. Never attempt
to remove shavings while the facer is running, or is
in the facing position between the jaws. Use care
when operating the facer, and when handling the
unit.
NOTICE: Disconnect power from the facer, and remove the facer
blades before attempting any maintenance or adjustment.
NOTICE: Never extend the blade beyond the inner or outer
circumference of the facer.
TX02378-1-24-05
WR00073-4-6-93

Safety
1 - 5
Have Tires Properly Serviced
Failure to follow proper procedures when
mounting a tire on a wheel or rim can produce
an explosion which may result in serious injury
or death. Have tires mounted by someone that is
experienced, and has the proper equipment to
perform the job safety.
TX00118-4-22-93
WR00083-4-22-93
Do Not Tow Fusion Machine at Speeds Greater
than 5 MPH
The chassis is not designed for over-road towing.
Towing at speeds greater than five miles per hour
can result in machine damage as well as injury.
Always transport the machine by flatbed truck or
similar means, and make sure that unit is properly
secured.
TX00101-4-12-93
CD00189-1-24-96
Fusion Procedures
Obtain a copy of the pipe manufacturer's procedures or
appropriate joining standard for the pipe being fused. Follow the
procedure carefully, and adhere to all specified parameters.
NOTICE: Failure to follow pipe manufacturer's procedure
could result in a bad joint. Always follow pipe
manufacturer's procedures.
TX04469-10-24-12
WR00079-1-24-96
Heater Is Hot
The heater is hot and will burn clothing and skin.
Keep the heater in its insulated heater stand or
blanket when not in use, and use care when
heating the pipe.
NOTICE: Use only a clean non-synthetic cloth to clean the heater
plates.
TX00104-01-03-14
WR00030-2-10-93

Positioning Fusion Machine
Place fusion machine on as level ground as possible, and set the
brake on the rear wheel. If it is necessary to operate machine on
unlevel grade, chock the wheels and block the unit to make it as
stable as possible.
TX00112-9-15-94
WR00076-4-7-93
Safety
1 - 6

Overview
2 - 1
Theory of Heat Fusion
The principle of heat fusion is to heat two pipe surfaces to
a designated temperature, and then fuse them together by
application of force. This develops pressure which causes flow
of the melted materials, which causes mixing and thus fusion.
When the thermoplastic material is heated, the molecular
structure is transformed into an amorphous condition.
When fusion pressure is applied, the molecules from each
thermoplastic part mix. As the joint cools, the molecules return
to their form, the original interfaces are gone, and the fitting
and pipe have become one monolithic unit. A strong, fully
leak tight connection is the result.
The principal operations include:
Clamping The pipe pieces are held axially and radially to
allow all subsequent operations to take place.
Facing The pipe ends are faced to establish clean,
parallel mating surfaces perpendicular to the
centerline of the pipes.
Aligning The pipe ends are aligned with each other to
minimize mismatch of the pipe walls.
Heating A melt pattern that penetrates into the pipe is
formed around both pipe ends.
Fusing The melt patterns are joined with a specified
force, which is constant around the pipe interfacial
area.
Cooling The fusion joint is held immobile with a specified
force until adequately cooled.
Inspecting Visually examine the entire circumference of the
joint for compliance with the standard or fusion
procedure used.
TX04660-04-18-16
PH00363B-1-4-96

Overview
2 - 2
Introduction to the 28 and 412 Hand Pump
Fusion Machines
The McElroy Rolling 28 and 412 HP fusion machines are
manually pumped hydraulically operated fusion machines
designed to butt fuse polyethylene pipe. This machine also
allows for butt fusion of most fittings without special holders or
removal of outer jaws.
If fusing other thermoplastic pipe materials, refer to the pipe
manufacturer's suggested procedures or appropriate joining
standard.
The Rolling 28 HP fuses 2" IPS through 8" DIPS (63 mm - 200
mm).
The Rolling 412 HP fuses 4" IPS through 12" DIPS (110mm -
340mm).
TX04095-6-25-10
Carriage Assembly
The carriage assembly consists of two fixed jaws and two
manually pumped hydraulically operated movable jaws. For
remote operation the carriage can be set in ditch. The carriage
assembly can be disconnected from the chassis and removed for
remote operation.
For tight installations the outer fixed jaw and skid can be removed
from the carriage for an even more compact fusion unit.
TX04096-6-25-10
PH04330-7-23-10
PH04331-7-23-10

Pump
The carriage assembly has a manually operated hydraulic pump
that is used to apply hydraulic pressure to the carriage hydraulic
cylinders in order to move the jaws. The pump has a pressure
release valve on the lower left side of the pump.
TX02951-4-15-09
Overview
Oil Reservoir
The hydraulic pump has a reservoir that stores the hydraulic
fluid. The hydraulic fluid is filled through a plug on the top of the
reservoir.
Refer to the "Check Oil Level" section for instructions on checking
and filling the hydraulic fluid.
Refer to the "Hydraulic Fluids" section of this manual for hydraulic
oil recommendations.
TX02950-4-15-09
PH04285-7-23-10
2 - 3
PH04283-7-23-10
Hydraulic Cylinders
The two carriage cylinders have air bleed screws and must be
bled if the system ever runs low on oil or leaks air on inlet side
of pump. Air in the system is indicated when carriage movement
becomes jerky and erratic.
Consult the "Maintenance" section of this manual for procedure to
follow when bleeding air from system.
TX01137-10-23-96
PH04286-7-23-10 PH04284-7-23-10

Overview
2 - 4
Facer
Electric motors are not explosion proof. Operation
of these components in a explosive atmosphere
without necessary safety precautions will result in
serious injury or death.
Ensure facer power switch is in the off position.
Connect facer to proper power source.
Don't turn on facer until ready to face.
Remove brushes on the Eibenstock facer motor:
The armature brushes must be removed from the electric motor
when manually operating in a hazardous condition.
Remove the rear cover of the motor.
Slide the spring clip away from the brush and pull the brush out
(A).
Loosen the brush ground wire (B) and pull the wire loose.
Repeat these steps on the wire on the opposite side.
Store the brushes in a safe location until needed.
A 1-1/8" hex shaft allows for manual operation in hazardous
conditions.
TX04102-6-28-10
PH04287-7-23-10
¡PELIGRO!
PH04129-4-12-10PH04130-4-12-10PH04130-4-12-10
B
A

Overview
2 - 5
Heater Stripper Bar
The heater is equipped with a stripper bar that is used to separate
the heater from the pipe ends after the heating cycle. When the
inner jaws are opened, the jaws lift and press against the stripper
bar separating the heater from pipe ends.
TX02982-4-27-09
PH043020-7-23-10
Heater
Heater is not explosion proof. Operation of heater in an
explosive atmosphere without necessary safety precautions
will result in serious injury or death.
If operating in an explosive atmosphere, heater should be brought up to
temperature in a safe environment, then unplugged before entering the
explosive atmosphere for fusion.
The heater has a green indicator light which will flash on and off. This
indicates that the controller is operating normally. If the green indicator is
not flashing then the controller may not be operating properly. If this occurs,
disconnect power and have the heater repaired by a McElroy Authorized
Service Center.
The heater temperature is controlled by a microprocessor. It has a red
indicator light on the handle at the bottom of the temperature scale. When
the heater is plugged in and preheating the light glows steadily until the set
temperature is reached. The light then goes off and on slowly as the heater
maintains temperature.
The heater body is not coated. Coated butt fusion heater plates are available
for all butt fusion applications.
NOTICE: The heater should never be used without butt fusion heater plates
installed.
To prevent a build-up of plastic pipe residue from accumulating on the heater
plates (loss of surface temperature and pipe sticking may result), the heater plates should be cleaned
with a non-synthetic cloth before every fusion joint.
TX02981-01-03-14
PH03874-3-29-10
¡PELIGRO!
PH02314-4-24-02
Insulated Heater Stand
The heater should always be stored in the insulated heater stand
or blanket for protection of the operator and to minimize heat loss
and risk of mechanical damage.
TX00363-9-15-94
PH03874-4-15-09

Overview
2 - 6
Pipe Lifts
Pipe lifts are provided to assist in pipe handling.
28 Hand Pump: The pipe lifts can be secured using detent pins
during machine transport or movement of pipe.
412 Hand Pump: Pump the pipe lift handle to raise the pipe. Turn
the release valve to lower the pipe.
TX05394-02-11-19
PH04290-7-23-10PH05706-02-07-19
Chassis
The carriage assembly is mounted on a four wheel chassis for
mobility and movement along the pipe line.
There is a pinned wheel lock on the left rear wheel to prevent
rolling.
The chassis is not designed for over-road towing.
Towing at speeds greater than five miles per hour
can result in machine damage as well as injury.
Always transport the machine by flatbed truck or
similar means, and make sure that unit is properly
secured.
The tongue on the tow bar has a ring to slip over a ball hitch so
that the machine may be conveniently maneuvered at the job site.
The tow bar acts as front pipe lift when raised.
The chassis is not designed for over-road towing.
TX02129-07-08-03
PH04288-7-23-10
PH04289-7-23-10
28 Hand Pump412 Hand Pump

Overview
2 - 7
Clamp Knobs
Clamp knobs are equipped with a thrust bearing, which permits
the operator to develop high clamping forces with minimal effort.
TX03099-4-12-10
PH04291-7-23-10