WSE WARRIOR 3050 User manual
ESTERNWQUIPMENTE
20
WARRIOR™
Model 3050™ Shotcrete Pump
Owner’s Manual
Look Inside For:
• Solving Problems
• Parts Lists
• Technical Schematics
www.wse-shotcrete.com
Toll Free: 1-887-592-7746
Western Shotcrete Equipment, Inc.
2Western Shotcrete Equipment, Inc.
Western Shotcrete Equipment, Inc.
Warrior Model 3050
Operation, Maintenance, and Safety Manual
The following individual, who has signed below, hereby acknowledges receipt of this manual on behalf of the
purchaser of the shotcrete pump.
Machine Serial No.
Sold To:
Manual Received by:
Name:
Title:
Signature:
Date:
After signing for this manual, please mail the manual back to the following address.
Western Shotcrete Equipment, Inc.
3026 Scott Lane
West Haven, UT 84401
NOTE! Warranty void until Western Shotcrete Equipment, Inc. receives the signed Signature Page.
3
Western Shotcrete Equipment, Inc.
NOTICE
THIS MANUAL IS IMPORTANT!
This is the operation and maintenance manual for your shotcrete pump. It contains information necessary
for safe and proper operation of the pump. All personnel who operate the pump must read and understand
this manual. Call Western Shotcrete Equipment, Inc. toll free if you have and questions. (877-592-7746)
This manual should be kept near the pump at all times.
This manual also contains Western Shotcrete Equipment’s written Warranty for the pump on the follow-
ing page. Please read that warranty, which is the sole warranty by Western Shotcrete Equipment, Inc. for
shotcrete pumps.
WARRANTY
Table of Contents
GENERAL INFORMATION
................................................................................................................................................................7
1 Foreword
..............................................................................................................................................................................................................7
2 Safety
.....................................................................................................................................................................................................................8
OPERATING INSTRUCTIONS
..................................................................................................................................................9
1 Operator Qualifications
...............................................................................................................................................................9
Introduction ...................................................................................................................................................................................................................9
1.1 Qualifications ..........................................................................................................................................................................................................9
2 Operating Principle
.........................................................................................................................................................................10
3 Controls
.............................................................................................................................................................................................................11
3.1 Control Panel Diagram & Outrigger Controls .......................................................................................................................................11
3.2 Machine Controls- Control Panel ..............................................................................................................................................................12
3.3 Machine Controls- Hopper ............................................................................................................................................................................13
3.4 Hydraulic Fluid Level and Temperature Gauge .................................................................................................................................13
4 Procedures
..................................................................................................................................................................................................13
4.1 Set Up .........................................................................................................................................................................................................................13
4.2 Start Up ....................................................................................................................................................................................................................14
4.3 Clearing a Dry Pack ...........................................................................................................................................................................................15
4.4 Shut Down & Clean Up ......................................................................................................................................................................................15
MAINTENANCE
............................................................................................................................................................................................17
1 Service Information
.........................................................................................................................................................................17
2 Maintenance Schedule
..............................................................................................................................................................17
SHOTCRETE PUMP MODULE
.................................................................................................................................................18
1 General
...............................................................................................................................................................................................................18
1.1 Pump Module Cross Section .........................................................................................................................................................................18
1.2 Remixer Assembly Cross Section .............................................................................................................................................................19
2 Piston Cup Replacement Procedure
....................................................................................................................20
3 Wear-Plate/ Wear-Ring Replacement Procedure
........................................................................... 22
5
Western Shotcrete Equipment, Inc.
6Western Shotcrete Equipment, Inc.
HYDRAULIC SYSTEM
......................................................................................................................................................................25
1 General/ Safety
.....................................................................................................................................................................................25
1.1 Hydraulic Fluid Precautionary Measures .............................................................................................................................................25
1.2 Hydraulic Fluid First Aid .................................................................................................................................................................................25
1.3 Hydraulic Fluid Fire ...........................................................................................................................................................................................25
1.4 Hydraulic Schematic .......................................................................................................................................................................................26
1.5 Operation ................................................................................................................................................................................................................27
2 Components
..............................................................................................................................................................................................29
2.1 Control Components Diagram ....................................................................................................................................................................29
2.2 Valves ......................................................................................................................................................................................................................30
2.3 Cylinders ................................................................................................................................................................................................................31
2.4 Accumulator .........................................................................................................................................................................................................31
2.4b Accumulator Diagram & S-Tube Valve Actuator Circuit ............................................................................................................31
2.5 Hydraulic Fluid ...................................................................................................................................................................................................32
2.6 Oil Cooler ...............................................................................................................................................................................................................32
ELECTRICAL SYSTEM
.....................................................................................................................................................................33
1 General/ Safety
.....................................................................................................................................................................................33
2 Wiring Diagrams
................................................................................................................................................................................34
2.4 Ladder diagram for pumps with a Deutz BF4M 1013C Engine ....................................................................................................34
2.5 Wiring diagram for pumps with a Deutz BF4M 1013C Engine ....................................................................................................35
2.6 Ladder diagram for pumps with a Deutz BF6L 913 Engine ..........................................................................................................36
2.7 Wiring diagram for pumps with a Deutz BF6L 913 Engine ............................................................................................................37
3 Components
..............................................................................................................................................................................................38
3.1 Proximity Switches ...........................................................................................................................................................................................38
ENGINE
....................................................................................................................................................................................................................39
1 General/Safety
......................................................................................................................................................................................39
1.1 Diesel Fuel Safety ...............................................................................................................................................................................................39
FRAME
.....................................................................................................................................................................................................................40
TROUBLESHOOTING
..........................................................................................................................................................................41
1 Pumping
............................................................................................................................................................................................................41
7
Western Shotcrete Equipment, Inc.
GENERAL INFORMATION
1 Foreword
Dear Customer,
Thank you for your purchase of our Warrior Shotcrete Pump. By Selecting this machine, you have place your-
self in a distinguished family of shotcrete/ concrete pump owners and operators.
If you have any suggestions on how we could provide better products or services, please let us know
by calling us toll free at 1-877-5-WARRIOR. Your input is an extremely useful tool that rates our products and
measures our service and support to you, our valued customer.
Sincerely,
Joe Harpole
President
8Western Shotcrete Equipment, Inc.
2 Safety
Warning
Do not attempt to operate this equipment without a thorough understanding of the operating, mainte-
nance, and safety considerations contained in this manual. To prevent damage to equipment and or injury
to you or other personnel, these instructions must be carefully followed.
Warning
Diesel is extremely flammable and is explosive under certain conditions. Work in a well-ventilated area
with the engine stopped. Do not smoke or allow flames or sparks in your working area or where diesel is
stored.
Warning
If the engine must be running to perform maintenance, make sure your workspace is well ventilated. Never
run the engine in an enclosed space. The exhaust contains poisonous carbon monoxide gas that may
cause loss of consciousness and lead to death.
Warning
Use dry nitrogen gas only to pressurize the accumulator bladder. Never use compressed air. The use of an
unstable gas such as compressed air can cause a fire or explosion resulting in serious injury or death.
Warning
California Proposition 65 Warning:
Diesel engine exhaust and some of its constituents are know to the state of California to cause cancer,
birth defects, and other reproductive harm.
9
Western Shotcrete Equipment, Inc.
OPERATING INSTRUCTIONS
1 Operator Qualifications
Introduction
Western Shotcrete Equipment, Inc. Warrior Shotcrete Pumps are high-pressure hydraulically powered piston
pumps for shotcreting or pumping of concrete. This manual describes the operation, maintenance, and
safety considerations that must be followed. Close attention to these details by the operator and mainte-
nance personnel are necessary to ensure a minimum of problems while striving for maximum productivity
and safety.
Prior to pump operation an operator must be thoroughly familiar with the equipment and its operation so
that he or she can operate it in a SAFE manner. His or her eligibility to operate the pump shall be based on
the following qualifications.
1.1 Qualifications
• Only experienced operators, or trainees under the direct supervision of an experienced operator,
shall operate the equipment. No unauthorized person should be permitted to assist or remain in the
immediate vicinity of the machine while it is in operation or during the performance of any mainte-
nance, inspection, cleaning, repair, or in preparatory operations.
• Individuals who cannot read and understand the signs, notices, and operating instructions that are
part of the job shall not operate the machine.
• Individuals who are not familiar with the operating instructions, have not received some on-the-job
supervised training, or are not familiar with the signal codes used at the construction site shall not
operate the machine.
• Anyone under the age of 21 years shall not operate the machine.
• Anyone with seriously defective eyesight or hearing and/or physical or mental impairment shall not
operate the machine. (Such as epilepsy or heart disease) This should be verified annually.
• The machine shall not be operated while the operator is eating, drinking, reading, talking on a phone,
or is more that six feet distance from the controls.
• An operator who has asked to be relieved because he or she feels physically or mentally unfit shall
not operate the machine.
• Machine shall not be operated at any new site, or at the start of a new shift, until a visual inspection
is made of the condition of the equipment.
• The operator shall report and damage, defects, problems, or accidents to his/her work supervisor
and next shift operator.
10 Western Shotcrete Equipment, Inc.
2 Operating Principle
The Warrior Shotcrete Pump consists of a receiving hopper, two material cylinders and pistons, and a
swingtube valve. A continuous flow of concrete through the delivery line is produced by the sequence of op-
eration of the two concrete pistons with the swingtube valve. The swingtube shifts between the two material
cylinders under a controlled Electro/Hydraulic sequence to direct the flow between the two material cylin-
ders, the hopper, and the discharge outlet. The swingtube allows one material cylinder to be directly open to
the hopper on the suction stroke, while simultaneously the other cylinder is directly connected through the
swingtube to discharge. At the end of the piston travel the direction changes and the swingtube is shifted to
direct the flow output from the other cylinder to discharge.
11
Western Shotcrete Equipment, Inc.
REMIXERJACKSTANDS
DOWN
OFF
UP FWD
OFF
REV
FAR
SIDE
NEAR
SIDE
20
3 Controls
3.1 Control Panel Diagram & Outrigger Controls
12 Western Shotcrete Equipment, Inc.
3.2 Machine Controls - Control Panel
1) The IGNITION Switch has two positions: OFF and ON. On allows the engine to start. Off shuts off the fuel
to the engine.
2) The START Button Engages the starter motor.
Note:
To avoid premature starter wear, do not operate the starter motor for more than 4 seconds at a time. Allow
the starter motor to rest 10 seconds between starting attempts.
3) ON, OFF, REMOTE Switch will turn the pump on and off at the Control Panel. When in the Remote position,
the pump can be turned on and off with a Remote Control Cable.
4) FORWARD/REVERSE Switch is used for forward or reverse pumping.
5) PRESSURE TEST Switch must be up in the Pump position for normal operation. In the Pressure Test posi-
tion, the pump will make one reverse stroke, stop, then the main hydraulic system will go to maximum pres-
sure. (3800psi)
6) FAN OVERRIDE Switch will activate the hydraulic fluid Cooling Fans regardless of hydraulic fluid tempera-
ture. (Only on machines equipped with electric cooling fans.)
7) THROTTLE CONTROL sets the engine speed. Twisting the control counter-clockwise for more RPM or clock-
wise for less RPM sets the engine speed. The throttle can be rapidly set by depressing the center button and
simultaneously pushing or pulling the control to the desired setting. Pulling the control out increases engine
RPM, pushing the control in lowers engine RPM.
8) FLOW CONTROL sets the hydraulic pump output and thus the concrete pump output. Twist the control
counterclockwise for more flow, clockwise for less flow or volume.
9) TACHOMETER indicates the engine speed in rpm. The tachometer also has a built-in Hour meter that mea-
sures machine time in elapsed hours.
10) HYDRAULIC PRESSURE Gage indicates hydraulic system pressure in psi. Note this is hydraulic fluid pres-
sure not actual pump outlet pressure. The pressure on the concrete is a 2.25 to 1 ratio to the hydraulic pres-
sure gage on the control panel. For example: When the hydraulic pressure gage reads 2000-p.s.i. the actual
concrete pressure at the 5” outlet flange is 889-psi. (2000/2.25 = 889)
11) ACCUMULATOR PRESSURE Gage indicates stored hydraulic pressure within the accumulator in psi.
12) REMOTE Receptacle for Remote Control Cable. The On-Off-Remote switch must be in the Remote posi-
tion to activate the remote control.
13) LOW OIL PRESSURE Light illuminates when the engine oil pressure is low.
14) ALTERNATOR FAIL Light illuminates when the engine Alternator is no longer powering the electrical sys-
tem.
15) COOLANT TEMPERATURE Light illuminates when the engine Coolant temperature exceeds the normal
operating range. (Applies to water-cooled engines only.)
13
Western Shotcrete Equipment, Inc.
16) COOLANT LOW Light illuminates when the engine Coolant Level falls below the normal operating range.
(Applies to water-cooled engines only. On air-cooled engines this light is renamed “V-Belt Failure” and will
illuminate if the engine cooling fan drive belt breaks)
17) HYDRAULIC FLUID Light illuminates when the hydraulic fluid temperature exceeds the normal operating
range. (>200°)
18) CYLINDER A ACTIVE Light illuminates when main drive cylinder A is pumping.
20) CYLINDER B ACTIVE Light illuminates when main drive cylinder B is pumping.
3.3 Machine Controls @ Hopper
1) REMIXER FORWARD / REVERSE Lever shifts the Remixer motor between Forward, Reverse, or Neutral.
This control lever is detented to remain in position selected by the operator. This lever is normally in the For-
ward position so that stiff concrete will be drawn from the walls of the hopper and pushed into the material
cylinders.
Warning
The operator shall carefully determine that the hopper is clear of personnel and/or equipment before engag-
ing the Remixer.
2) HYDRAULIC JACK STAND Levers control the extending/retracting of the machine support stands. These
control levers are spring returned.
Warning
The operator shall carefully determine that personnel and/or equipment are clear of the jack stand feet be-
fore extending the Hydraulic Jack stands.
3.4 Hydraulic Fluid Level and Temperature Gauge
Never operate the pump when oil level is below the Low Level mark. Inspection of oil level periodically during
operation and at shutdown is considered good operator awareness. This will protect against accidental loss
of oil. With the motor running, the proper level should be at the High Mark.
Normal range of oil temperature is 100°-160°F. Oil temperature of less than 50°F is in the cautionary
range. The machine should not be operated at full output until the oil temperature is above 50°F, otherwise
hydraulic pump damage may occur. Oil that is below 10°F should be preheated to 50°F ideally but at least
to 20°F prior to starting the engine.
4 Procedures
4.1 Set up
Positioning of the shotcrete pump will, of course, differ from job to job. The operator must determine how
close the machine can be placed to the work location while still providing good access to ready-mix trucks.
After a relatively flat location is found, the outrigger legs must be extended to isolate the machine’s road
suspension from the weight of the loaded hopper.
Warning
The operator shall carefully determine that personnel and/or equipment are clear of the jack stand feet be-
fore extending the Hydraulic Jack stands.
14 Western Shotcrete Equipment, Inc.
4.2 Start up
An important part of pumping is the proper lubrication of the pipeline and/or hose system at the start of the
pour. More downtime has been caused by inattention to this detail than any other reason.
First, the hopper must be wetted. Then a rich, sloppy grout must be introduced to the hopper and slowly
pumped into the pipeline system. The grout should be a I x I sand/cement mix about the consistency of thick
soup. It coats the pipeline system ahead of the concrete mix and prevents packing or bleeding of the mate-
rial to be pumped when it is introduced to the line.
The amount of grout depends on the length of line and its diameter. The minimum is 5 to 6 cubic feet for
short runs of small diameter line. It can be a cubic yard or more for several hundred feet of 5” line. Experi-
ence will indicate the proper amount, but it is always safer to have too much rather than too little.
A small amount of grout should be kept in the hopper and blended with the mix to provide a transition into
the pumping operation.
Before turning the pump on, turn the Flow-Control knob clockwise until it stops. This will set the hydraulic
pump output to minimum. Use the throttle control to set the engine speed to about 1800~2000 rpm. Make
sure that the Forward/Reverse switch is set to “FWD” and the Pressure Test switch is set to “Pumping”. Turn
the pump on by setting the pump switch to the “ON” position. Slowly turn the Flow-Control knob counter-
clockwise to increase the pumping rate. As the mix is starting to flow through the line careful attention must
be paid to pump pressure to see If a plug or blockage is forming. Only after this should the pump speed be
increased to the planned operation rate.
Note: The Western Shotcrete Equipment Warrior Shotcrete Pump Is a high-pressure pump. The Shotcrete
machine Is designed to develop a theoretical pressure of 1700-psi at the discharge outlet of the machine.
Although the average pumping pressure will normally be somewhat less than the maximum, remember that
the pressure on the concrete is a 2.25 to 1 ratio to the hydraulic pressure gage on the control panel. For ex-
ample when the hydraulic pressure gage reads 2000-psi. ( 2000 /225 = 889 ) The actual concrete pressure
at the 5” outlet flange is 889-psi.
The transport system shall be capable of withstanding the maximum pumping pressure of 1700-psi. (Check
with the manufacturer on products not supplied by Western Shotcrete Equipment.)
Pressures are highest at the pump’s 5” outlet flange and reduce uniformly to zero at the discharge end of
the transport line under normal pumping conditions.
Warning
If a dry-pack or blockage does occur in the delivery system, pressures up to 1700-psi will be developed and
contained within the entire delivery system from the pump to the point of pack or blockage. USE extreme
cautionary procedures under these conditions.
Warning
It is the responsibility of each pump owner/operator to check with the manufacturer of the delivery system
pressure capability that is not supplied by Western Shotcrete Equipment. Failure to observe these guidelines
can result in serious personal injury and/or damage to equipment.
Western Shotcrete Equipment recommends only the usage of shouldered or heavy-duty pipeline system,
hose, and clamping devices that are specifically designed for high-pressure concrete pumping applications.
15
Western Shotcrete Equipment, Inc.
4.3 Clearing a Dry Pack
When a block or dry-pack occurs in the delivery system, the pumping pressure gauge will reach the maxi-
mum 3800-psi. Immediately switch the pump off. Switch the swingtube from forward to reverse, pump at
least two or more strokes in reverse to relieve the pressure from the dry-pack back to the concrete pump.
Shut the pump off.
Warning
It is possible there will still be pressure contained in the delivery system. Extreme caution must be used
when opening the clamping devices on any part of the delivery system. Warn all persons in the immediate
area of this danger. Clear the area of persons prior to opening the clamp and protect eyes and body while
opening clamp.
After the dry-pack has been cleared and the reducer, pipeline, and/or hose system restored, return the
swingtube to forward. Start the pump up at a low volume rate until a steady flow of material is being
pumped.
Warning
Never attempt to clear a pack in the transport system with pump pressure.
4.4 Shut Down & Clean up
It is very important that the operator knows and follows the correct procedure for cleaning the machine.
Because there are moving parts in the hopper, the operator must use caution when cleaning the machine.
The operator SHALL USE EXTREME CAUTION when using his or her hands to clean in the hopper area. When
it is necessary to clean out the hopper or swingtube, the operator must shut down the engine and carefully
determine that the accumulator has discharged. The operator shall also warn anyone that may assist him in
cleaning the machine.
Clean the machine with the following procedure:
1) Pump the remaining material out of the hopper until it is half empty, and then turn the pump off.
2) Add enough water to the material in the hopper to make a thin slurry.
3) Switch the swingtube to reverse and turn the pump on. The reverse pumping will cause the water to mix
with the material to form a thin slurry.
4) Pump the slurry through the line followed with water.
5) Remove and thoroughly clean the hopper clean-out door.
6) With the pump turned on and in reverse pumping, turn a water hose into the discharge outlet. This will
draw water into the concrete cylinders and push rock and sand out through the hopper door.
7) Before cleaning the inside of the hopper the operator must shut down the engine and carefully make sure
that the accumulator pressure is fully discharged. Check that the accumulator is discharged in the following
manner:
a) With the engine shut down, turn the ignition key-switch to the on position.
b) Turn the pump switch to the on position.
c) Repeatedly switch the swingtube from reverse to forward until the swingtube no longer shifts.
Note: The Western Shotcrete Equipment Warrior Shotcrete Pump, frame No. 109 and higher are equipped
with an automatic accumulator discharging system* that will discharge the accumulator if the ignition key-
switch is in the off position or if the electrical system loses power, NOT if the engine stalls. (i.e. Engine runs
out of fuel, etc.) The operator should not rely solely on this system: he or she shall use the precautionary
procedure outlined in the above paragraph.
16 Western Shotcrete Equipment, Inc.
8) Clean the hopper out using a stiff brush and water.
Warning
THE OPERATOR SHALL NEVER PUT HIS OR HER HANDS IN THE CYLINDERS!
9) Start the engine and turn the pump on. Cycle a few times to make sure there is no material left in the
cylinders.
10) With a bent rod or broom handle remove any build up of material.
11) Clean the clean-out door opening. The clean door and opening must have a good seal. (Not leak water) If
the seal is not good the pump will suck air through it instead of concrete- resulting in partially filled material
cylinders.
12) Lubricate the pump module at these five locations:
a) Flange Bearing.
b) S-Tube shift Cylinder Base.
c) S-Tube shift Cylinder Yoke.
d) Remixer Housing.
e) Outlet Flange.
It is important to lubricate the pump module after clean up. This pushes out water, cement, and other con-
taminants before they can harden. Failure to lubricate the pump module properly even once will cause pre-
mature wear and or damage to the machine resulting in expensive downtime.
* SEE Hydraulic System Sec. 2.4 Accumulator
17
Western Shotcrete Equipment, Inc.
MAINTENANCE
1 Service Information
Recommended engine oil: Shell Rotella T 15W-40 or comparable. Capacity: 4 gallons.
Recommended hydraulic fluid: ISO-68, AW-68 (20W), Qualified against Denison HF-0. Meeting requirements
of Vickers M-2950-S and 1-286-S specifications. Capacity: 55 gallons.
Engine oil filter: Napa part #1820
Engine fuel filter: Napa part #3358
Engine air filter: Napa part #2l26
Hydraulic fluid filter element: Western Shotcrete Equipment part #83621
2 Maintenance Schedule
Grease machine twice daily at all grease fittings especially after clean up.
Replace engine oil, oil filter, and fuel filter every 250 hrs.
Inspect and/or replace engine air filter Every 250 hrs.
Replace Cups (85704) and Cup adapter 0-Rings (85707) when water-box is full of slurry or every 250 hrs. Fill
water-box halfway with used or new hydraulic fluid.*
Replace Wear-plate (85131) & Wear-ring (85334) every 300 hrs.#
Change hydraulic fluid and Filter and inspect tank plumbing for loose fittings and/or breaks at the 1st 300
hrs, then every 6 months or every 1000 hrs.
Inspect frame for cracks every 500 hrs.
Inspect surge brake assembly for proper operation every 500 hrs.
*Refer to Maintenance sec. 2 for Cup and 0-Ring replacement procedure.
# Refer to Maintenance sec. 3 for Wear-plate / Wear-ring replacement procedure.
18 Western Shotcrete Equipment, Inc.
85175
85174
85176
85172
85153
85323
85163
85162
85164
85161
85523
85522
85501
85503
85165
85513
85406
85140
8533185131
85132
85133
85707
85704
85402
85514
85511
85512
8570885710
85751
85401
85402
85406
85613
83219
85609
83221
85607
85603
85602
85601
83208
83204
83218
83223
83224
83206
83201
83205
83212
83211
83213
85100
HOPPER COMPLETE
85300
S-TUBE COMPLETE
87001
85150
OUTLET FLANGE
COMPLETE
8517 3
85401
85405
85404
85101
85135
85753
85754
85403
83203
83209 85608
85605
85712
85711
83202
83222
85502
85752
85750
MKII PISTON ADAPTER
COMPLETE
85521
85324
85320
HARDENED OUTLET
COMPLETE
85171
83217
8321 5
83216
8322 5
85504
84251
85606
83207
85301
85332
85615
85614
85403
85404
SHOTCRETE PUMP MODULE
1 General
1.1 Pump Module Cross Section
19
Western Shotcrete Equipment, Inc.
85231
85232
85224
85212
85229
85212
85226
85205
85211
85233
85228
85208
85213
85207
85218
85202
85219
85216
85217
85203
85204
85214
83780
85230
85210
REMIXER CARTRIDGE
COMPLETE
1.2 Remixer Assembly Cross Section
20 Western Shotcrete Equipment, Inc.
2 Piston Cup Replacement Procedure
Warning
Make sure your workspace is well ventilated. Never run the engine in an enclosed space The exhaust con-
tains poisonous carbon monoxide gas that may cause loss of consciousness and lead to death.
Warning
Extreme caution is needed when working in the hopper and waterbox. Use lock-out tag-out procedures. Al-
ways remove the ignition key and put it in your pocket or other secure place when working in the hopper and
water-box.
Note: The Western Shotcrete Equipment Warrior Shotcrete Pump, frame no.109 and higher are equipped
with an automatic accumulator discharging system* that will discharge the accumulator if the ignition key-
switch is in the off position or if the electrical system loses power, NOT if the engine stalls. (i.e. Engine runs
out of fuel, etc.) The operator should not rely solely on this system: he or she shall USE the following precau-
tionary procedure:
a) With the engine shut down, turn the ignition key-switch to the on position.
b) Turn the pump switch to the on position.
c) Repeatedly switch the swingtube from reverse to forward until the swingtube no longer shifts.
d) Toggle the pump switch to the off position.
e) Turn the key-switch to the off position.
Note: The electrical system must work properly for this procedure to work.
1 Remove key from engine ignition.
2 Remove water-box cover.
3 Drain oil and slurry out of water-box by removing the drain plug.
4 Using a squeegee, putty-knife, or similar tool, clean out water-box.
5 Start engine and turn the pump on in forward mode. Carefully wash out remainder of oil and slurry.
6 With the pump “on” and in “forward”, toggle the pump mode switch to “Pressure Test”.
7 When the pump goes to high pressure, turn off key, remove key.
8 Observe the accumulator gauge. Make sure it reads 0 psi.
9 Remove Remixer paddle-shaft.
10 With a chipping gun or hammer and chisel, remove concrete build-up around cup bolt. Care must be
exercised not to damage chrome in the material cylinder.
11 With a 1-1/8” size HD socket remove cup bolt.
12 Remove cup retainer.
* See Hydraulic System sec. 2.4 Accumulator
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