REED B50HPG User manual

Rev * REED LLC 2020
B50HPG TECHNICAL MANUALS
Operations, Maintenance, Schematics, Parts, Safety
OPERATIONS/
MAINTENANCE
SCHEMATICS/
PARTS LISTS
SAFTEY MANUAL
AMERICAN CONCRETE
PUMPING ASSOCIATION
Introduction
Warranty
Safety
Operation
Main Controls
Priming
Pumping
Clean-up
Maintenance
Check-List
Pumping Train Group
Power Train Group
Main Hydraulic Pump
Tanks
Hydraulic Manifolds
Accumulator
Electrical Group
PCL Controls
Frame Installation
Available Options
Introduction
General Safety
Rules
Appendix

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INTRODUCTION............................................................................................................. 2
WARRANTY.................................................................................................................... 2
WARRANTY CLAIM FORM....................................................................................................................... 4
SAFETY .......................................................................................................................... 5
SAFETY ALERT SYMBOLS AND SIGNAL WORDS................................................................................. 5
LOCKOUT /TAGOUT................................................................................................................................ 6
GENERAL SAFETY GUIDELINES............................................................................................................ 7
SAFETY DECALS ..................................................................................................................................... 8
OPERATION ................................................................................................................. 17
OPERATOR QUALIFICATIONS.............................................................................................................. 28
SERIAL PLATE IDENIFICATION............................................................................................................. 29
ASERIES MAIN PANEL SERIAL IDENIFICATION ................................................................................. 30
B&C SERIES PANEL SERIAL IDENIFICATION...................................................................................... 31
CONTROLS ............................................................................................................................................ 32
PLC MAIN CONTROLS A-SERIES ............................................................................................................................... 32
PRODUCT DESCRIPTION ..................................................................................................................... 35
CONTROLS .................................................................................................................. 40
PLC MAIN CONTROLS B,C-SERIES ................................................................................................. 41
JOBSITE SET-UP................................................................................................................................ 50
PRIMING ................................................................................................................................................. 50
PREPARING FOR SYSTEM START-UP............................................................................................. 51
OPERATION OF CONTROLS A-SERIES ..................................................................... 52
OPERATION OF CONTROLS B&C-SERIES................................................................ 54
RECOMMENDED MAINTENANCE PRACTICES................................................................................... 55
GENERAL MAINTENANCE AREAS ....................................................................................................... 56
WHEEL AND TIRE SAFTEY .............................................................................................................. 59
TRAILER RECOMMENDED MAINTENANCE ........................................................................................ 60
LUBRICATION......................................................................................................................................... 62
COMPONENT REPLACEMENT ............................................................................................................. 72
PUMP MAINTENANCE SCHEDULE AND CHECKLISTS ...................................................................... 73
NOTES.......................................................................................................................... 80
REV
DATE
DESCRIPTION
NAME
*
8/31/2020
TIER4
J. SLACK
1.0
4/28/2021
UP-DATES
J.SLACK
1.1
6/29/2021
UP-DATES
J.SLACK
1.2
11/22/2021
ADDED B50G CONTROLS
J.SLACK

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INTRODUCTION
This manual introduces the warranty policy, safe operation, safe maintenance, parts,
and other aspects of the concrete equipment.
Reading and understanding this operation manual will help maximize performance and
reliability, and help minimize dangers, improper operation, and repair costs. Contact
REED Customer Service for additional replacement manuals.
All safety guidelines, product descriptions, illustrations, and specifications found
throughout this manual were in effect at the time the manual was released for printing.
It should be noted; REED RESERVES THE RIGHT TO MAKE CHANGES IN DESIGN
OR TO MAKE ADDITIONS TO OR IMPROVEMENTS IN THE PRODUCT WITHOUT
IMPOSING ANY OBLIGATIONS UPON ITSELF TO INSTALL THEM ON PRODUCTS
PREVIOUSLY MANUFACTURED.
Everyone involved with the operation, maintenance, inspection, and repair of the
concrete pump MUST READ and UNDERSTAND this manual and the
accompanying Safety Manual.

OPERATION and MAINTENANCE
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WARRANTY
REED warrants each new Concrete equipment A,B, and C Series to be free of defects
in material and workmanship under normal use and service for a period as follows:
CONCRETE PUMP
•1 year or 1200 operating hours, whichever occurs first
•A,B, and C Series all Structural Parts for 3 years
The warranty is issued ONLY to the INITIAL USER. The warranty period begins when
the product is delivered to the initial user or when first put into service, whichever occurs
first. Said warranty is void if the machine is subject to misuse, neglect, accident, and/or
abuse.
REED’s obligation under this warranty is limited to correcting without charge, at its
factory, any parts or parts thereof which shall be returned to its factory, transportation
prepaid and upon REED’s examination proves to have been originally defective.
Correction of such defects by repair or replacement shall constitute fulfillment of all
obligations to the initial user. This warranty does not include labor or transportation
charges unless specifically identified and authorized in writing by REED. Nor does the
warranty apply to any unit upon which repairs, or unauthorized alterations have been
made.
This warranty does not apply to normal maintenance service or to normal replacement
of certain machine parts which are subject to normal wear (such as concrete cylinders
and wear components, valve mechanisms, delivery systems, hopper grate, etc.) REED
makes no warranty in respect to trade accessories or outside vendor components, such
being subject to the warranties of their respective manufacturers.
THIS IS A LIMITED WARRANTY AND IS IN LIEU OF ANY OTHER WARRANTIES,
EXPRESSED OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY
OF FITNESS FOR A PARTICULAR PURPOSE. In no event shall REED be made liable
for incidental, general or consequential damage, loss or any expense directly or
indirectly related and resulting from use or lack of use caused by delay in delivery, parts
failure, or any other causes associated with the product use. No person, firm or
corporation is authorized to assume for REED any other liability in connection with the
sale of REED products.
Effective April 2010

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WARRANTY CLAIM FORM
Claim Number:
Date:
Distributor Account Number:
End User Account Number:
Distributor:
End User:
Address:
Address:
City: State: Zip:
City: State: Zip:
Phone ( )
Phone ( )
Pump Model:
Pump Serial Number:
In Service Date:
Hours of Operation:
Failure
Date:
Repair Dat
e:
Do not send part(s) until requested by REED or until claim is approved. All parts requested to be
returned must have a Return Authorization Number provided by REED and shipping freight prepaid.
Parts must ship within 30 days from REED request.
Return Authorization Number: Ship Date:
Part Number Description Qnty Unit
Price
Total
Price
Replacement
Part Invoice No.
Failure Description and Cause:
REED Comments:
Claim Value Approved:$ Claim Value Denied:$
REED Print Name, Sign, and Date:
Dealer Print Name, Sign, and Date:

OPERATION and MAINTENANCE
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SAFETY
Everyone involved with the operation, maintenance, inspection, and repair of the
concrete pump MUST READ and UNDERSTAND this manual and the
accompanying Safety Manual.
SAFETY ALERT SYMBOLS AND SIGNAL WORDS
The following safety alert symbols, signals, and explanations are intended to warn the
operator of hazardous and potentially hazardous situations.
The triangle with the exclamation point inside is used to alert the operator to an
important safety point and is called a safety alert symbol. One of the following signal
words will appear after the safety alert symbol:
If the safety alert symbol is followed by the signal word DANGER, the safety alert
symbol indicates a hazardous situation which, if not avoided, WILL lead to death or
serious injury.
If the safety alert symbol is followed by the signal word WARNING, the safety alert
symbol indicates a potentially hazardous situation which, if not avoided, COULD result
in death or serious injury.
If the safety alert symbol is followed by the signal word CAUTION, the safety alert
symbol indicates a potentially hazardous situation which, if not avoided, COULD result
in minor to moderate injury.
The signal word CAUTION, but without safety alert symbol means the safety symbol
alert addresses a hazard which, if not avoided, COULD cause damage to equipment or
property.

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LOCKOUT / TAGOUT
The Lockout/Tagout procedure applies to all REED concrete placing equipment.
Before performing any maintenance and/or repair on equipment.
1. Remove keys lock-out signage must be posted to indicate machine is currently
under Lockout/Tagout.
The following symbol is a reminder to Lock Out and Tag Out equipment before working
on equipment.

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GENERAL SAFETY GUIDELINES
Use Only Qualified, Experienced, and Trained Personnel
Wearing Protective Equipment At All Times
For Safe Use, Maintenance, Inspection, and Repair,
Only Operate, Maintain, Inspect, and Repair
In Accordance with This Operation Manual and the Safety Manual
Performance and Safety Features Must Never Be Altered, Disconnected, or Removed
Contact REED Technical Support and Service When Assistance Is Required

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SAFETY DECALS
Decals and placement of decals are standardized by the Concrete Pump Manufacturers
Association (CPMA) for your protection. They are placed at appropriate areas on the
concrete pump to be constant warnings of dangers. Know and adhere to the
information they provide. Contact REED Customer Service for complimentary
replacements of safety decals, shipping charges may apply.
DECALS PLACED NEAR CONTROL BOX AREA

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DO NOT OPERATE
MACHINE
WITHOUT ALL
GRATES IN PLACE

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DECALS PLACED NEAR HOPPER GRATE AREA

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DECALS PLACED NEAR WATERBOX AREA
DECALS PLACED NEAR OUTRIGGER CONTROL AREA

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DECALS PLACED ON SIDE PANEL AREA

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OPERATION and MAINTENANCE
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PRODUCT DESCRIPTION
The operation of the concrete pump encompasses the use of hydraulic and electrical
systems. The concrete pump is designed to safely pump wet concrete through a
delivery system of pipes and hoses within its published ratings and specifications.
Stability of the concrete pump during operation is provided by the outriggers and front
jack. Controls for the outriggers are located on the sides of the concrete pump.
The pumping system employs an S-Tube design valve system. This system
incorporates material cylinders linked to hydraulic cylinders that cycle alternately. With
concrete material in the hopper and the pump operating, a material cylinder retracts,
drawing material into the cylinder. At full retraction of the cylinder, a signal is sent to
both the S-tube swing cylinder and the drive cylinder directional valves causing the s-
tube to shift position to the fully loaded material cylinder and the drive cylinders to
change direction. The concrete piston of the loaded cylinder then pushes the material
through the s-tube and into the delivery lines. The shifting from one cylinder to the other
cylinder takes place providing a continuous flow of material through the delivery piping
system. The pump can be operated at the control panel or can be operated from the
remote control.
The hydraulic oil flow created by the hydraulic pump pushes the drive cylinder pistons
inside the drive cylinders (1) alternately back and forth. Because the drive cylinders and
concrete pistons (2) inside the concrete cylinders (3) are linked together, the pistons
move synchronously.
When a drive cylinder retracts along with the concrete piston, concrete will be sucked
from the hopper into the concrete cylinder. Simultaneously, the other drive cylinder and
concrete piston are extended toward the hopper. The concrete piston will push concrete
from the concrete cylinders through the S-Tube (4) and out to delivery system (5).
Next, the pump switches at the end of the stroke, causing the s-tube valve to shift to the
other concrete cylinder which has sucked and filled the cylinder with concrete, starting
the next cycle.
Reverse pumping links the concrete piston in the suction stroke and S-Tube valve to
suck concrete from the s-tube instead of the hopper. As a result, the concrete piston
pumps concrete into the hopper.

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The power for operation of the concrete pump is provided by the engine, which drives
the hydraulic pumps.
All functions for operation of the concrete pump can be accomplished from the local
controls mounted on the side of the unit. Optional hand-held cable or radio remotes
enable the pump to be operated away from a remote distance.
HYDRAULIC SYSTEM DESCRIPTION
The hydraulic system of the concrete pump consists of three separate circuits and
although integrated, each is designed to perform a particular function within the
operation of the concrete pump. The three circuits utilized are:
•Main Pump Circuit
Controls operation of the hydraulic drive cylinders.
•S-Tube Shift Circuit
Controls operation of shifting the s-tube from one material cylinder to the other.
•Auxiliary Circuit
Controls the operation of the agitator and other auxiliary equipment.
For the purpose of making the operation of each circuit easier to understand, they are
being described separately.
MAIN PUMP CIRCUIT
The main hydraulic pump is a variable displacement axial piston pump of swashplate
design. The pistons run along the swashplate which is capable of being tilted. This tilting
changes the angle of the swashplate and thus the stroke length of the pistons, which in
turn varies the displacement of fluid. The larger the angle of the swashplate, the greater
the flow. The angle of the swashplate is varied by the volume control that works in
conjunction with the load sense feature of this pump.
The main hydraulic pump is driven directly by the engine or electric motor. When the
engine is running, PUMP switch in the OFF position and the VOLUME control minimized,
there is no demand placed on the pump. This is referred to as the pump being de-stroked,
meaning, it is only producing a minimal amount of flow to enable the lubrication of the
pump. This lubrication exists regardless of whether the engine is at idle or maximum RPM.
The main pump circuit is equipped with a manifold that is drilled and ported to
accommodate the relief valve, check valve, flow control and the pilot operated
directional valve. The cycle valve is a directional spool valve with electrohydraulic

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solenoid operation. Its purpose is to direct the flow of oil from the main hydraulic pump
to one or the other
To energize the pump circuit, use the RPM button to set the engine speed at maximum
RPM. Open the VOLUME control to any range from 0 to FULL. In so doing, the load
sense is alerted to the demand and places the pump on stroke. The pump will now
produce the flow in proportion to the amount by which the volume control has been
opened. Since the PUMP switch is OFF, the flow from the hydraulic pump is fed to the
main directional valve, thru the valve, and then returns to the hydraulic tank.
To energize the cycling circuit, the PUMP switch must be ON. When this is done, an
electrical signal is generated which in turn energizes the coils of the main directional pilot
valve and activates the S-Tube directional valve.
The material pumping action is the result of the two material cylinders cycling on an
alternate basis. This alternating cycling is controlled by an electrical signal that is
generated by the proximity sensors located in the flush box at the end of each material
cylinder’s suction or retraction stroke.
As the piston coupler passes under the proximity sensor, it generates an electrical input
signal that is sent to the logic controller, designed to control the alternating action of the
material cylinders and to synchronize the movement of the s-tube. The output signal from
the logic controller is used to energize the coils of the main directional pilot valve as well
as that of the s-tube directional valve.
As protection to the main pump circuit against excessive pressure, a relief valve has
been installed and set. Thus, when the system pressure reaches the maximum factory
settings, the relief valve opens directing the oil back to the tank.
MATERIAL
OIL
PROX SIGNAL