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The CONDITION of the unit prior to start-up is a very IMPORTANT factor as it directly
affects the operator's safety as well as those around him. It should be a common practice
that the operator performs a general inspection of the REED 00 MODEL C50SS before
each day's operation.
The purpose of the operator's inspection is to keep the equipment in PROPER working
condition and to DETECT any sign of malfunction during normal operations between
scheduled maintenance checks.
DOWNTIME is COSTLY and can possibly be prevented by taking a few minutes prior to
start-up to do a thorough walk-around inspection. This inspection must be performed each
day before the unit is operated. Report any damage or faulty operation immediately.
Attach a sign, if need be, at the control panel which states ------ DO NOT OPERATE ------.
Repair any discrepancies before use.
Some major items to be considered for your inspection include the following:
1.
OVERALL MACHINE CONDITION
•
External structural damage
•
Wheel lug nuts missing or loose
•
Brake line wiring, connection
•
Condition of tires, pits, tears, cuts, inflation
•
Decals, placards, warning signs
•
Missing, broken or damaged parts
•
Remote switch & cable condition
•
Gauges, Throttle control
2.
HYDRAULIC SYSTEM
•
Loose or damaged hoses, tubing, fittings
•
Hydraulic leaks
REVISION:
REED 00 MODEL: C50SS
TRAILER CONCRETE PUMP
PRE-OPERATION INSPECTION
OPER.
PAGE
00
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Summary of Contents for REED 00 C50SS
- Page 1 The CONDITION of the unit prior to start-up is a very IMPORTANT factor as it directly affects the operator’s safety as well as those around him. It should be a common practice that the operator performs a general inspection of the REED 00 MODEL C50SS before each day’s operation.
- Page 2 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE • Hydraulic fluid level • Cleanliness of fluid, filter condition indicator • Hydraulic valves and control levers • Hydraulic cylinders 3. HOPPER • Grate in place not damaged • Agitator condition •...
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Page 3: Getting Acquainted
OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE GETTING ACQUAINTED (UNIT FAMILIARIZATION) As previously indicated, it is important from a SAFE operational standpoint that you, the OPERATOR, know your machine. This means the function of each control as to what happens when it is activated, how it might interact with other functions and any limitations, which might exist. -
Page 4: Control Familiarization
OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE CONTROL FAMILIARIZATION The controls for operation of the 00 MODEL C50SS can be found and are located on the right (curb) side of the machine. A control box is provided and contains all the main function instruments, switches, and indicators. - Page 5 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE 3. EMERGENCY STOP This is an emergency switch and is used to shut down the pump in an emergency situation. It is of the push-pull type. Depress PUSH knob in to STOP operation.
- Page 6 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE 9. CONTROL SWITCH This is a two (2) position toggle switch and is used to select the pump control location. Move toggle to LOCAL to enable operation of concrete pump from main stationary panel.
- Page 7 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE 17. PRESSURE GAUGE – 6000 PSI This hydraulic pressure gauge is used to indicate the main system hydraulic pressure being applied to the hydraulic cylinder pistons of CYL A OR CYL B on the forward stroke.
- Page 8 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE 19. AGITATOR CONTROL The agitator or remixer function is controlled by a manually operated single spool directional control valve. The valve is used to control ON-OFF function as well as the rotation direction of the hydraulic motor. With lever in CENTER position, the hydraulic flow to the motor is OFF.
- Page 9 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE 21. WATER PUMP CONTROL – OPTION This option is operated from the auxiliary circuit. It utilizes a single spool manual directional valve to control the operation of the hydraulic motor. The motor is used to drive the water pump.
- Page 10 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE 22. SHIFT BALL VALVE This control is located on the swing circuit hydraulic manifold. It is a manual ball valve and is used to control the speed of the S-tube shift. For a hard fast shift, place lever of ball valve in a vertical (12 o’clock) position.
- Page 11 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE REMOTE CONTROL FAMILIARIZATION A remote control pistol grip console is provided and is used to enable the operation of the concrete pump away from the immediate vicinity of the unit. The remote is equipped with an umbilical cord that plugs into the side of the main control box.
- Page 12 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE REVISION:...
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Page 13: E-Stop Switch
OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE RADIO REMOTE CONTROL FAMILIARIZATION A hand held radio remote control unit is may be used to enable operation of the concrete pump away from the immediate vicinity of the unit. The complete unit consists of a hand... - Page 14 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE 3. PUMP SWITCH This switch is used to control the cycle operation of the concrete pump. PUSH top part of switch to turn pump ON, to start cycling. PUSH bottom of switch to turn pump in the OFF position to STOP cycling..
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Page 15: Radio Remote Operation
OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE 14 RADIO REMOTE OPERATION REFER TO TEACH PROCEDURES IN SCHEMATICS SECTION) Before proceeding to start-up and operate the radio remote control, make sure it is safe to do so. Make sure the same safety precautions normally required for safe pump operation are adhered to. -
Page 16: Towing The Trailer
At no time should this be overlooked. The REED 00 MODEL C50SS is equipped with two (2) torsion bar type axles, electric brakes, and standard tail lights. It is capable of being towed by a truck at a highway speed up to 55 MPH (88KM/HR) MAXIMUM, depending on road conditions. -
Page 17: Towing Tips
OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE • Always attach the SAFETY CHAINS to towing vehicle and attach the breakaway cable. • Connect trailer electrical cable to truck connection to establish trailer brake circuit and lighting. Check that lighting is operational. - Page 18 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE OPERATION INSTRUCTIONS Having READ and UNDERSTOOD the previous pages on SAFETY and CONTROL FAMILIARIZATION you are now in a position to learn how to operate the unit. If you have not READ the previous pages we suggest you do so before PROCEEDING.
- Page 19 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE • Keep a sufficient distance away from slopes, pits, trenches and excavations that could breakaway. • Make every attempt to set up as near as possible to placement site. The shorter the pumping distance the greater the material delivery.
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Page 20: Starting The Pump
OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE • If the delivery line will cross rebars, support must be considered for the pipe so that it does not contact the rebar mat. • For best pumping results it is important to size the inside diameter of the pipe or hose to that of the size of the aggregate in the concrete to be pumped. - Page 21 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE When you have completed the above checks, the unit is ready for start up. • At the main control panel, turn key switch and start engine. When engine starts, release key.
- Page 22 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE PRIMING THE PUMP SYSTEM Before proceeding to cycle and pump concrete material it will be necessary to prime the pump system and delivery lines. This operation consists of pumping a coating of lubrication grout through the S-tube and delivery lines to enable the regular concrete mix to flow smoothly.
- Page 23 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE The pressure by which the concrete is being pumped is based on the ratio between the hydraulic cylinder and the material cylinders and that is divided into the hydraulic pressure being applied to the drive cylinders.
- Page 24 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE • When it is necessary to pump unfavorable mixes such as extremely stiff, under sanded, lightweight concrete, the best procedure is to keep the remixer/agitator shaft visible all the time. In so doing, the hopper will only be filled to the lower edge of the remixer shaft making the concrete easier to pump.
- Page 25 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE TROUBLESHOOTING TIPS - PUMPING & BLOCKAGE • A drop in volume can occur when pumping long distances or with stiff mixes as compared with shorter lines and wetter mixes. • Water leaking from a connection can cause separation of the mix in the delivery line and will eventually develop into a blockage at that point.
- Page 26 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE CLEARING A PACK OR BLOCKAGE Blockage in the delivery line during pumping operation will no doubt happen at one time or another. An observant alert operator, who can recognize the symptoms is of great value.
- Page 27 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE CLEAN UP OF THE PUMP This sometimes may seem tedious, tiresome and a distasteful task, however, the clean up is a VERY IMPORTANT operation. We pointed out previously the importance of the pre- operation inspection.
- Page 28 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE • Fill the hopper with water. Place the DIRECTION switch to the FORWARD position and check that VOLUME control is set at low speed. Turn PUMP ON and cycle the pump until the sponge passes through the entire delivery system.
- Page 29 OPER. REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE C50SS MODEL REVISION:...
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Page 30: Preventative Maintenance
MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE PREVENTATIVE MAINTENANCE How good is any of the equipment you own? It is only as good as it is MAINTAINED. Even the finest equipment manufactured requires attention and care. The 00 MODEL C50SS is no different. - Page 31 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE SCHEDULED INSPECTION The main purpose of accomplishing scheduled inspections is to identify and detect any potential malfunction before it can expand into a major problem. The list presented herein should be inspected and checked on a regular basis. In so doing, it will help ensure a good, safe unit performance.
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Page 32: Hopper Assembly
MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE 3. PUMP CELL • Visually check for structural damage, cracked welds • Hydraulic drive cylinders in good condition, secure, no leakage • Material cylinders secure, tie rods tight • Water box structurally sound, clean, cover in place •... -
Page 33: Main Control
MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE • Check connection of S-tube to outlet, seals, bearing • Hopper drain is functional • Remixer / Agitator in good condition, motor secure 5. MAIN CONTROL • Control box in good condition, not damaged •... - Page 34 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE LUBRICATION The 00 MODEL C50SS concrete pump is equipped with several components that because of the application require frequent lubrication. These areas involve the S-tube shifting mechanism, swing components, the shift and outlet bearings and agitator. To insure the economical service and the long life of these components, grease fittings are installed at each point.
- Page 35 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE LUBRICANT AND INTERVAL The lubricant that is recommended is generally the best choice, however, should this lubricant be unavailable in your area, consult your local supplier for an equivalent. On the same basis, recommended lubrication intervals are based on normal use, in normal environmental conditions.
- Page 36 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE REVISION:...
- Page 37 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE LUBE POINT LOCATIONS REVISION:...
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Page 38: Hydraulic System Maintenance
PAGE HYDRAULIC SYSTEM MAINTENANCE The REED 00 MODEL C50SS utilizes a diesel engine as the main source of power, which drives the main hydraulic pump. The hydraulic pump is used to supply the flow and develop the necessary pressure to operate the concrete pump. As with any operational system, it is only as good as it is maintained. -
Page 39: Hydraulic Tank
MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE HYDRAULIC TANK The hydraulic tank has a capacity of 60 GALS (227L) and is located just forward of the hopper. It is equipped with a filler breather unit, access cover and two (2) magnetic suction strainers inside the tank. -
Page 40: Hydraulic Fluid
MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE SYSTEM MAINTENANCE ITEMS The following are specific items for care and maintenance of the hydraulic system. • FLUID LEVEL Check level daily with sight gauge provided. Maintain level at full mark. Add through filter. -
Page 41: Adding Hydraulic Fluid
MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE ADDING HYDRAULIC FLUID As previously indicated, a hydraulic systems worst enemy is CONTAMINATION. Exercise extreme care when adding fluid to the hydraulic tank. • To prevent any dirt or water from entering the hydraulic tank, thoroughly clean area around top of filter. - Page 42 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE The purpose of installing hydraulic filters in the system is to provide a means of continuous hydraulic fluid filtration in an effort to prevent recirculation of abrasive solids which will cause rapid wear of component breakdown.
- Page 43 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE • Start up machine and observe for leakage. DO NOT ATTEMPT TO WASH OUT FILTER ELEMENT. These are disposable types and more harm can be done than it is worth. CLEANING THE HYDRAULIC TANK The hydraulic tank should be drained and cleaned after 1000 hours of operation or yearly whichever comes first.
- Page 44 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE DESCRIPTION OF HYDRAULIC SYSTEM The hydraulic system of the 00 MODEL C50SS consists of three separate circuits and although integrated, each is designed to perform a particular function within the operation of the concrete pump.
- Page 45 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE MAIN PUMP CIRCUIT (Refer To Hydraulic Schematic) The 00 MODEL C50SS is designed to pump concrete material from the hopper to the placement site. To accomplish this requires the use of two (2) material cylinders that are driven by two (2) hydraulic cylinders and the material pumping action is the result of the two cylinders operating or stroking on an alternate basis.
- Page 46 The black box is a REED proprietary solid state device, designed to control the alternating action of the material cylinders and to synchronize the movement of the swing tube.
- Page 47 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE CIRCUIT OPERATIONAL SEQUENCE In the operational sequence of the MAIN PUMP CIRCUIT and with the engine running and throttle adjusted to maximum, the main pump is idling. When the PUMP switch is placed ON and volume control open, the hydraulic drive cylinders begin to cycle.
- Page 48 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE With this arrangement of connecting the two cylinders together, it is possible for various reasons, such as leakage around the piston seals that more oil exists on the rod side of the cylinder than is required.
- Page 49 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE The S-tube shift hydraulic circuit is of the open center type, meaning that when the control valves are in the NEUTRAL position hydraulic non operational (unactuated), the internal passages of the valves are open, free flow, allowing the hydraulic fluid to return to the tank.
- Page 50 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE REVISION:...
- Page 51 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE • SELECTOR CONTROL VALVE – This is a manual valve which enables the flow to be adjusted for high or low volume depending on concrete mix design. The valve, when completely open, allows full flow for a harsh mix S-Tube movement. As the valve is closed fully, the flow is directed through an orifice for a soft type mix.
- Page 52 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE ACCUMULATOR The accumulator is incorporated into the shift circuit to provide instant pressure and volume for the shifting of the swing tube, which cannot be obtained under normal circumstances. An accumulator is a hydraulic reservoir that retains the hydraulic fluid under high pressure.
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Page 53: Auxiliary Circuit
MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE AUXILIARY CIRCUIT The AUXILIARY CIRCUIT used on the 00 MODEL C50SS has been designed and installed for the purpose of operating the hydraulic function of the agitator and outriggers. This function is that of the agitator rotation for mixing the material in the hopper and operation of the outriggers. -
Page 54: Adjustment Procedures
TEST GAUGE #2 – This test gauge consists of same set up as GAUGE 1 except the gauge is a 0-6000 PSI (0-420 Bar) hydraulic pressure gauge is used. The TEST GAUGE KITS are available from the REED Parts Department. REVISION:... - Page 55 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE REVISION:...
- Page 56 1. MAIN HYDRAULIC PUMP The main hydraulic pump is manufactured by Sundstrand and all internal adjustments and settings have been made by Sundstrand to REED specifications. No further adjustments are required. Should it become, at some point, necessary to make adjustments, refer to the Sundstrand pump data located in the VENDOR SECTION of this manual.
- Page 57 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE B. ADJUSTING THE PRESSURE • To make the pressure adjustment, loosen the locknut on the relief valve and adjust. • Turn PUMP switch ON and again actuate and hold TEST CYL switch ”A” or “B”.
- Page 58 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE B. SETTING SHIFT CIRCUIT PRESSURE • Loosen the locknut on the RELIEF VALVE. • Actuate PUMP switch to ON position. • Turn PUMP switch ON and actuate CYL switch to either “A” OR “B” and hold.
- Page 59 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE REVISION:...
- Page 60 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE S-TUBE CIRCUIT HYD DIAGRAM REVISION:...
- Page 61 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE 4. AUXILIARY CIRCUIT RELIEF The auxiliary circuit for the 00 MODEL C50SS is used to operate the agitator function. In this circuit, the relief valve set pressure and the system operating pressure is the same. To check and make an adjustment the following is offered: Agitator Pressure –...
- Page 62 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE ADJUSTMENT TO SWING TUBE It is important from an operational standpoint that the swing tube shift properly from side to side and that it is properly adjusted to prevent leakage particularly at high pressure and high volume pumping.
- Page 63 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE REVISION:...
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Page 64: Major Component Replacement
A step by step procedure is offered. Please be aware that the possibility exists your machine may be slightly different. If you find this to be the case, contact the REED Service Department. They will be pleased to assist you. REVISION:... - Page 65 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE SWING TUBE & COMPONENTS The sealing characteristics of the swing tube depends on metal to metal friction of the wear ring, located inside the swing tube, to the wear plate installed on the inside of the hopper at the material cylinders.
- Page 66 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE REVISION:...
- Page 67 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE REVISION:...
- Page 68 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE WEAR RING AND WEAR PLATE REMOVAL/REPLACEMENT • Turn off engine to shut down the system. BE SURE ACCUMULATOR PRESSURE IS RELEASED. • At the bell crank, remove retainer, swing tube bolt, bell crank and shift cylinders.
- Page 69 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE SWING TUBE REPLACEMENT The swing tube, like the wear plate and wear ring, is considered a wear item, meaning that it will eventually need to be replaced. When this situation is encountered, the following is offered to assist you in accomplishing the replacement.
- Page 70 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE • Reassemble the swing tube and components in basically the reverse order used in disassembly. Some important items to be noted are: • Make sure all components that are to be reused are cleaned from any residual material or grease.
- Page 71 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE Do not place hands in the water box or in adjacent area while motor is running. Always check that the pressure in the accumulator has been released before performing any work.
- Page 72 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE REVISION:...
- Page 73 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE PISTON ADAPTER O-RING REMOVAL/REPLACEMENT Installed on the piston adapter, is an o-ring that is used as a second seal for the material cylinders. This o-ring will need replacing and a tell-tell sign is if the material cylinders only partially fill with material.
- Page 74 To successfully work in the system and do the job intended the accumulator must first be pre- charged. This operation involved the induction of DRY NITROGEN GAS into the bladder to a pressure of 1250 PSI (87.5 BAR). This pressure will vary with each REED pump. Check the specifications noted in MAINTENANCE SECTION, HYDRAULIC DESCRIPTION CHAPTER of the appropriate manual.
- Page 75 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE In operation of the accumulator in the hydraulic system, hydraulic fluid enters the accumulator through the fluid port and fills the area at the bottom between the inner wall of the shell and bladder.
- Page 76 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE REVISION:...
- Page 77 A Charging and Gauge Kit is required to perform maintenance on the accumulator. It is available from the REED Parts Department and you will find that it to be a good investment for your workshop. CHECKING PRESSURE Prior to checking of the accumulator pre-charge pressure the machine must be shut-down and all hydraulic pressure and fluid in the accumulator has been relieved.
- Page 78 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE • Unscrew the valve protection cap #6 and valve seal hex cap #5. Exercise extreme care not to damage the O-ring #7 when removing the cap. • Before making the installation of the gauge unit to the accumulator, turn the “T” handle counterclockwise until some resistance is felt.
- Page 79 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE INCREASE PRE-CHARGE PRESSURE In checking the pre-charge pressure if it is found to be too low then add nitrogen gas as follows: • Install gauging unit as previously described. Turn “T” handle clockwise until needle on gauge begins to move then from this point turn it another full turn.
- Page 80 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE REPLACING THE ACCUMULATOR BLADDER Because of the continuous inflation-deflation of the bladder, it is not uncommon that replacement of the bladder will be required. It is not difficult but time consuming as extra care must be exercised in disassembly-reassembly so as not to damage good reusable parts.
- Page 81 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE • Install the gauging unit to the accumulator after turning the “T” handle counterclockwise until a resistance is felt. Also close manual bleed valve, hand tight. • After gauging unit has been installed, turn “T” handle clockwise a maximum of 3 full turns from the full closed position.
- Page 82 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE REASSEMBLY Before proceeding to reassemble the accumulator it is recommended that the various parts be inspected for wear and damage. Replace as required. Also make sure that all parts are clean in particular the interior of the accumulator shell.
- Page 83 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE • Fold anti-extrusion ring #14 in half and insert into shell with steel seat facing the fluid side opening. To do this push fluid port further into shell and then pull it back through the middle of the extension ring.
- Page 84 MAINT REED 00 MODEL: C50SS TRAILER CONCRETE PUMP PAGE • On topside of accumulator, remove loosely attached locknut #4 and install nameplate. Install locknut and tighten. Photo K Install charging and gauging kit and pre-charge with DRY NITROGEN GAS as previously described.
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