TYMCO DST-4 2019 Operator's Manual

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MODEL

DST-4

DUSTLESS

SWEEPING

TECHNOLOGY

OPERATOR'S

MANUAL

TYMCO, INC.

P.O. BOX 2368, WACO, TEXAS 76703

(Shipping Address)

225 EAST INDUSTRIAL BLVD. WACO, TEXAS 76705

PHONE: 254-799-5546 • FAX: 254-799-2722

WEB SITE: www.tymco.com

2019

E-MAIL ADDRESS: info@tymco.com

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Page 1 MODEL DST-4 DUSTLESS SWEEPING TECHNOLOGY OPERATOR’S MANUAL TYMCO, INC. P.O. BOX 2368, WACO, TEXAS 76703 (Shipping Address) 225 EAST INDUSTRIAL BLVD. WACO, TEXAS 76705 PHONE: 254-799-5546 • FAX: 254-799-2722 WEB SITE: www.tymco.com 2019 E-MAIL ADDRESS: info@tymco.com...
Page 3 An informed operator will do a better job. Make sure he/she has an opportunity to study this manual. This Operator’s Manual is the property of TYMCO, and is considered proprietary. It may not be reproduced by photocopying or otherwise without the express written permission of TYMCO.
Page 5 INTRODUCTION To insure proper understanding of operation, cleaning and maintenance of your TYMCO REGENERATIVE AIR SWEEPER, it is necessary that this Operator’s Manual and the Service & Parts Manual be read and studied from cover to cover by the operator. A full understanding of this equipment will help the operator achieve the results expected of this machine.
Page 7 Operating Procedures Guidelines Model DST-6 & DST-4 Complete Sweeper Sweeper Shut Down Open pre-cleaner door and Inspection CAREFULLY remove pre-cleaner 1. Lower Auxiliary Engine RPM to assembly. Shake off any dust Check Auxiliary Engine Oil and idle speed (1100 RPM for Model and if necessary, use “shop air”...
Page 8 TYMCO REGENERATIVE AIR SWEEPER INSPECTION AND REPETITIVE TASK SCHEDULE Inspect Perform Gutter broom(s) for impact damage/ Cleaning of gutter broom torque motor Daily wear Daily shaft area Pick-up head blast oriﬁ ce for lodged Check of hydraulic tank ﬂ uid level...
Page 9 ITEM DESCRIPTION RECOMMENDED SERVICE Blower Bearings Grease once a week or every 25 hours of operation. Blower Power Band Re-tension after initial 10 hours; then check every 100 hours. Blower Wheel Inspect monthly for wear. DO NOT REACH INTO BLOWER HOUSING FOR ANY REASON! Gutter Broom / Wafer Check DAILY for string, cassette tape, etc on motor shaft.
Page 13: Table Of Contents
TYMCO REGENERATIVE AIR SYSTEM ......1 TYMCO Model DST-4 System ....... 3 Basic Operations .
Page 15: Tymco Regenerative Air System
The TYMCO REGENERATIVE AIR SWEEPER can achieve your anticipated results while keeping cost at a minimum. However, to realize the full potential of the TYMCO REGENERATIVE AIR SWEEPER, you must understand its capabilities and adhere closely to operating and job functions for which it was designed.
Page 16 An inspection at the dump site, however, may reveal that there are rocks and large objects in the hopper. This is due to air currents in the TYMCO REGENERATIVE AIR SYSTEM having the potential to pick up various large objects and retain them.
Page 17 DST-4 SYSTEM FUNCTION Sweepers equipped with the optional 435 Dustless Sweeping Technology (DST) allow the pickup head to sweep virtually dust free without the use of external water spray nozzles. A ﬁ lter box assembly is located just behind the cab and is used to ﬁ lter a small percentage of air bled from the pressure side of the sweeper.
Page 18 M01307 Should too little air be bled off, over pressure of the pickup head will occur and dust blow out will result. Too much air bled off will decrease ﬁ lter operational life as excess air ﬂ ow will deposit more dust on the ﬁ lter media. PRECLEANER The air which has been bled off is sent through a centrifugal precleaner that rids the air of most dust particles before passing the air through four large ﬁ...
Page 19 NOTE: The purge system control switch is located on the sweeper console in the cab. Proper performance of the dustless sweeper requires the ﬁ lters be kept free ﬂ owing as measured by the minihelic restriction indicator gauge at the sweeper control console in the cab.
Page 20 PRECAUTIONS The TYMCO DST feature is intrinsically simple and safe to operate. However, a few operational and service precautions should be followed when working around the ﬁ lter box area. SAFETY Do Not open the ﬁ lter box large access door without ﬁ rst turning off the sweeper ignition key on the sweeper control console in the cab.
Page 21 Do Not over service the four large ﬁ lters! Restriction readings below 6" WC, clean ﬁ lters by turning on purge system as described previously. TYMCO ﬁ lter cartridges (P/N 12734) may be washed off using LOW pressure hose and gently spraying the ﬁ lter pleats. Allow ﬁ lter to dry overnight before using.
Page 22: Basic Operations
BASIC OPERATION: The operator should already be familiar with the safety precautions and operation of a standard TYMCO Model DST-4 street sweeper: To begin sweeping in dustless mode, use the auxiliary hydraulic system to lower the pickup head and pull forward to seat the pickup head seal curtains.
Page 23: Routine Maintenance
Open the large access door and drain OPENINGS the ﬁ lter/water separator (top of box) by pushing on the drain cock till empty (Illustration M02143).TYMCO MODEL DST-4 ILLUSTRATION M02143 NOTE: Bowl will normally be full of water, drain till empty.
Page 24 TROUBLESHOOTER’S GUIDE PROBLEM CAUSE SOLUTION Sweeper blows out dust Damper ﬂ ue plates closed Make sure the DST Mode from pickup head skid switch on the control panel plates is in the “ON” position and VMM Input #3 LED is on Dustless system not Blown fuse or bad electrical Check DST circuit fuse at...
Page 25 TROUBLESHOOTER’S GUIDE CONTINUED CAUSE SOLUTION PROBLEM Thin air due to high altitude If the Magnesense gauge is Flue Plate fully open and over 5000 feet reading below 1.8”, and the will not close (Continued) head is set properly, block off some of the tubes in the precleaner.
Page 26 GOVERNOR COMPRESSOR SERVICE The compressed air system of the TYMCO DST-4 sweeping system is vital for the proper sustained performance of the dustless effect. Without the compressed air system, the four large ﬁ lters used to clean all exhaust air would quickly become blinded over blocking the exhaust air ﬂ...
Page 27 HOPPER FUNCTION The hopper is designed to provide a containment area for material picked up during sweeping operations and/or auxiliary hand hose use. Its shape serves to distribute the load evenly and centrally over the rear axle and aid in breaking loose the load as it shifts toward the hopper door opening when dumping.
Page 28 SERVICE & MAINTENANCE REMEMBER: “A CLEAN MACHINE RESULTS IN LONGER LIFE AND MAXIMUM PERFORMANCE.” After sweeping route is completed, the ﬁ rst procedure in maintaining the unit must be to clean and wash unit thoroughly. Raise the hopper/door to access internal parts of the hopper. Wash all built-up mud from the dirt deﬂ...
Page 29 BLOWER FUNCTION ® The blower is the most important part of the TYMCO AIR SWEEPER as it furnishes both pressure for the blast oriﬁ ce as well as suction for the suction nozzle. The blower is designed for maximum performance with low noise and is constructed of an aluminum alloy for light weight.
Page 31: Hydraulic System
HYDRAULIC SYSTEM FUNCTION The Model DST-4 Hydraulic Pump constantly circulates hydraulic oil through the system while the auxiliary engine is in operation, thus supplying controlled ﬂ ow and pressure upon demand. When a hydraulic component control switch is activated, it transmits a signal to the control valve to divert hydraulic energy to the selected work station.
Page 32 TROUBLESHOOTER’S GUIDE (continued) PROBLEM CAUSE SOLUTION Hopper will not raise Control valve coil not Check hydraulic system fuse; energizing check wiring to see that it is attached to control valve coil. use test light to see if wire is getting electrical current;...
Page 33 SERVICE & MAINTENANCE WARNING: Before servicing, stop auxiliary engine and remove ignition key or disconnect negative battery cable. HYDRAULIC SYSTEM ADJUSTMENTS Dual Gutter Broom Option - Refer to Hydraulic System Drawings and control valve as- sembly drawing. In order to check or set the pressures required, which is 2500 PSI (172.5 Bar) for the primary pressure (Gutter Brooms) and 1500 PSI (103.5 Bar) for the secondary pressure (Pickup Head and Dump), a gauge with a pressure range of 0 to 3000 PSI (0 to 207 Bar) is necessary.
Page 34 FILTER SERVICE REQUIREMENTS AND SPECIFICATIONS NOTE: The oil and ﬁ lter service requirements must be followed to maintain hydraulic parts warranty. See Hydraulic Oil Speciﬁ cation section for recommended oil usage. There are two hydraulic ﬁ lters in the hydraulic system. A return ﬁ lter and a reservoir vent ﬁ...
Page 35: Power Unit
• Bio diesel 7% (B7) maximum ENGINE COOLANT REQUIREMENTS TYMCO recommends the use of ethylene glycol based extended life coolant/antifreeze that meets ASTM D6210 and contains a nitrite free additive package. It should be a 50/50 dilution with quality water. A proper coolant mixture has been used upon the initial ﬁ lling of the system during manufacture.
Page 36 a proper mixture of: Chevron Delo ® Extended Life Coolant/Antifreeze - Nitrite Free ENGINE OIL REQUIREMENTS Use only API CJ-4 engine oil. Use of Kubota OEM ﬁ lters is recommended. The engine oil and ﬁ lter should be changed after the ﬁ rst 50 hours of operation. Thereafter, the recommended engine oil service interval is 250 hours.
Page 37 TROUBLESHOOTER’S GUIDE WARNING: Before servicing, stop auxiliary engine and remove ignition key or disconnect negative battery cable. PROBLEM CAUSE SOLUTION Blower shaft not turning Belt not tight Tighten. See Blower Assembly-Disassembly and Assembly Section. Defective ﬂ ex coupling Remove and Replace or PTO Shaft Loose sheave Tighten.
Page 38 AIR CLEANER MAINTENANCE Proper air cleaner servicing will result in maximum engine protection against the ravages of dust. Proper servicing will save you time and money by maximizing ﬁ lter life and cleaning efﬁ ciency. The most common problem with air cleaner service is over servicing. Air ﬁ lter elements increase in dust cleaning efﬁ...
Page 39 expels any collected dust and water. The Vacuator Valve also unloads when the engine is stopped. Replace That Damaged Vacuator Valve! If your valve is cracked, torn, remains open or is missing, dust particles that are normally expelled can deposit themselves onto the ﬁ lter and will shorten air ﬁ...
Page 40: Gutter Broom
GUTTER BROOM FUNCTION As a complement to the REGENERATIVE AIR SYSTEM, the gutter broom is designed to dig material loose from the gutter or similar areas and move it in front of the pick-up head where it can be easily picked up by the air sweeping action of the pick-up head. The gutter broom is designed to hydraulically relieve and ﬂ...
Page 41 PROBLEM CAUSE SOLUTION Gutter broom motor stalls Replace O-ring; check easily sequence valve block bore for burrs or rough spots. Cartridge valve poppet not Clean foreign material seating properly from valve seat. Replace cartridge if damaged seat/ poppet exists. Note: Gutter broom will rotate backward while switch is in “up”...
Page 42 PROBLEM CAUSE SOLUTION Damaged structural Repair or replace. components Universal joints stuck or Replace damaged Excessive bristle wear Improper adjustments See SERVICE AND MAINTENANCE Section. Gutter broom does not move Bristles worn out Replace. debris in front of pick-up head properly Improper angle adjustments See SERVICE AND MAINTENANCE Section.
Page 43 DOWN PRESSURE ADJUSTMENT Always place broom on a smooth surface when making adjustments. The hydraulically operated gutter broom is spring suspended to help counter the hydraulic cylinder force for proper down pressure (depending on the bristle type) the cartridge sequence valve must be properly adjusted.
Page 44 ELECTRIC LOCK VALVE DWG-M01170 The Electric Lock Valve is used to hold the gutter broom up when the sweeper is in transit or the broom is not in use. A 12V DC current to the lock valve coil is required to lower the broom. No maintenance is required for the lock valve assembly.
Page 45 FLOW CONTROL VALVE DWG-M01328 (12915) The ﬂ ow control valve controls how fast the gutter broom raises by restricting the ﬂ ow of oil from the base end port of the gutter broom cylinder. Set broom retraction speed from 2.5 to 3.0 seconds.
Page 47: Pick-Up Head
PICK-UP HEAD FUNCTION The pick-up head is the most important assembly on the sweeper. With proper cleaning, care and adjustment, the unit will perform as it was designed to perform. Pressurized air from the blower enters the pick-up head through the pressure inlet assembly where turning vanes distribute it equally across the full width of the pick-up head pressure chamber.
Page 48 CAUTION: For safety, check the pick-up head drag links for loose nuts or damage. Failure to do so could cause serious damage to truck rear tires and axle. Prevent an accident: check it! TROUBLESHOOTER’S GUIDE PROBLEM CAUSE SOLUTION Low sweeper Faulty seal Check all seals for leaks.
Page 49 This procedure distributes “Hot Spot” wear. CURTAIN REPLACEMENT USE ONLY TYMCO CURTAINS FOR REPLACEMENT Remove pick-up head from under sweeper. Turn pick-up head over to expose bottom of head and curtains. Remove the screws and angle iron clamps. (Make note how angle iron clamps are oriented so they can be reinstalled correctly.) Remove small...
Page 50 The curtains are now ready to be bolted on. If speed clips and screws are worn out, a complete replacement set is available from TYMCO, Part No. 500506. Make certain the angle iron clamps are installed properly. When beginning to install the curtains, it is best to ﬁ nger start all the curtain screws and then start tightening them from the center working gradually to each side.
Page 51: Water System
ﬁ nes, thereby, leaving them behind stuck to the pavement as a ﬁ lm. The TYMCO dust control system injects water spray into dust generation areas controlling the dust at its source which allows the ﬁ ne particulates on the sweeping surface to be easily removed by the unique REGENERATIVE AIR sweeping system.
Page 52 LIQUID LEVEL SENSOR SYSTEM The liquid level sensor system is an electrically controlled water level sensor which provides water pump protection when the water level in the water tank becomes depleted. The sensor turns off the water pump and illuminates a low water light on the control console located inside the truck cab.
Page 53 Turn the ball valve back to the sweep position and ensure the water pump switch back to the on position. WINTERIZATION The TYMCO water system requires freeze protection during freezing weather. The winterization procedure will vary depending on the type of water pump and optional ®...
Page 54 PROBLEM CAUSE SOLUTION Low pressure Worn nozzles Replace with nozzles of proper size. Belt slippage Tighten or replace, use correct belt. Air leak in inlet plumbing Disassemble, reseal and reassemble. High pressure relief valve Clean and adjust relief stuck open or improperly valve, check for worn and adjusted dirty valve seats.
Page 55 PROBLEM CAUSE SOLUTION Water in crankcase (cont.) Leakage of inlet manifold Replace seals and/or seals and/or piston rod sleeve o’rings. sleeve o’rings Oil leaking from underside Worn crankcase seals Replace seals. of crankcase Oil leakage from drain plug Loose drain plug or worn Tighten drain plug or drain plug o’ring replace o’ring.
Page 57: Control System
Added circuits that exceed the current draw of TYMCO Wiring are best controlled through the use of a relay which can utilize an existing TYMCO wire for the “Switch-on” signal. The main power for extra circuits should be separately fused.
Page 58 ® BlueLogic System The Model DST-4 Regenerative Air Sweeper uses a BlueLogic ® control system to interface ® the auxiliary engine and control sweeper functions. BlueLogic is a multiplexing control system which has the ability to process logic and communicate with other electronic devices on the sweeper.
Page 59 Module Input / Output LED Diagnostics The control module has 12 inputs and 10 outputs. Each input and output has a corresponding indicator LED located on the right side of the module in the status window. Most inputs are switched by a high side or positive voltage signal. Some are switched by a low side or grounded signal.
Page 60 ® BlueLogic System The Model DST-4 Regenerative Air Sweeper uses a BlueLogic ® control system to interface ® the auxiliary engine and control sweeper functions. BlueLogic is a multiplexing control system which has the ability to process logic and communicate with other electronic devices on the sweeper.
Page 61 Module Input / Output LED Diagnostics The control module has 12 inputs and 10 outputs. Each input and output has a corresponding indicator LED located on the right side of the module in the status window. Most inputs are switched by a high side or positive voltage signal. Some are switched by a low side or grounded signal.
Page 62 Programmed Sweeper Interlocks The control module is preprogrammed with several standard sweeper interlocks as well as some optional. Some interlocks protect certain components from damage while others are for operator convenience. See the options section of this manual for more information on optional interlocks.
Page 63 The engine ECU will take control of engine throttle and complete the cleaning process. The manual Regen will be canceled if any of the following occur: a. Pick-up head is raised b. Engine RPM increase switch is pressed c. Engine RPM decrease switch is pressed d.
Page 64 The available pages include: Auxiliary Engine Engine speed, engine oil pressure, engine Homepage coolant temperature, and battery voltage will The Homepage is the main screen that will be displayed as well as engine hours, engine always show after the ignition is turned on. torque % and fuel rate.
Page 65 Sweeper Gauges Engine Fault Status When an active engine fault occurs a warning The hydraulic oil temperature as well as all message will appear over the active page as non-engine related sweeper gauges will be displayed. The gauges displayed will vary shown below.
Page 66 User Settings There are some user conﬁ gurable options. These can be adjusted by the operator or supervisor. To access this screen, the customer PIN code must be entered. The default PIN Code is “2345”. The PIN Code can be changed if desired. Press the Change PIN Code button and follow on screen prompts.
Page 67 Five customizable service reminders are The Service Reminders Page is used to provided. To access these reminders, press monitor and reset the service timers. The the Custom Reminders button. To setup the recommended service interval for each item custom reminders press the Setup button on will be shown on the right side of the screen.
Page 68 Each time a service timer is reset, it will be recorded in the Sweeper Service Log. The engine hours at the time of the service will be recorded. The log can be accessed by pressing the Service Log button on the main Hour Meters page.
Page 69 The sweeper odometer keeps track of distance swept. The feature provides a non- resettable odometer, trip odometer, and an odometer trip hour meter. The average sweeping speed is provided for the trip odometer. The odometer is managed by the ® BlueLogic Control System and logs distance any time the head is down (indicated by the...
Page 70 Setup Menu The Setup Menu is primarily used for factory setup and diagnostics. The Info tab provides access to event logs and module status. The Measure tab provides additional diagnostic information. The Adjust tab provides access to conﬁ gurable options. Most adjustments are for factory conﬁ...
Page 71 Added circuits that exceed the current draw of TYMCO Wiring are best controlled through the use of a relay which can utilize an existing TYMCO wire for the “Switch-on” signal. The main power for extra circuits should be separately fused. Failure to follow these guidelines may VOID any warranties applicable as determined by TYMCO.
Page 72 TYMCO MODEL DST-4 BLUELOGIC CONTROL PANEL COMPONENTS ITEM DESCRIPTION Switch - Broom Position (Optional) Switch Actuator - Gutter Broom HMI Switchpack Assembly Switch Actuator - GB RPM Control Panel Switch Actuator - DST Mode Switch - Broom Tilt (Optional) Switch Actuator - Purge System...
Page 73 2019 D4OPTRS...