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MSB Flintec

  26 November 2014

2

Applications

Installations are typically accomplished by separating the body frame from the chassis or trailer frame and installing 
load cells between these typical vehicle structures;

Accuracy and Performance

This manual is primarily concerned with the mechanical installation of the Flintec DSB7 7.5 tonne (16500 Lbs) and 
15 tonne (33000 Lbs) capacity truck load cells and cables. Please refer to the appropriate operator's manual for the 
installation and use of the indicator. Optimum onboard weighing performance is obtained when the load cells are 
installed between the load-carrying body (compactor body, tipper body, box, tank, flatbed, etc.) and the vehicle chassis 
and carrying the entire weight of the superstructure and payload. No weight-supporting structure other than the load 
cells, such as braces or gussets should attach the superstructure to the chassis; this will result in an alternate load-path 
that will degrade weighing system accuracy. Typical applications include: waste trucks, tippers, tankers, flatbeds and 
van type structures mounted on either truck chassis or trailers. Truck bodies and payloads are supported above the 
chassis with load cells mounted directly to the truck frame (see example illustrations below) are usually accomplished 
by separating the suspension subframe from the trailer frame and installing load cells between these structures

.

Tipping Trailer

Under-body tipping arrangement

Tipping Trailer

Front end tipping arrangement

Load cell

Load cell

Load cell

Load cell

Load cell

Load cell

Load cell

Chassis

4 Axle Rigid Fixed Body

Waste/Garbage truck, boxed truck

Load cell

Load cell

Chassis

2/3 Axle Rigid Fixed Body

Waste/Garbage truck, boxed truck

Load cell

Load cell

Chassis

Chassis

Load cell

Load cell

4 Axle Rigid Tipping Body

2/3 Axle Rigid Tipping Body

Load cell

Agricultural machines

Load cell

Load cell

Load cell

Agricultural machines

Summary of Contents for DSB7-15T

Page 1: ...ations should be carried out by suitable qualified engineers Pleasereadthismanualcarefully Chassis body mounted on board weighing load cells Trucks Agricultural Machines and Axle Weighbridges DSB7 7 5...

Page 2: ...ion styles 4 Cable orientation 5 Preparation 6 10 Body Chassis Alignment Installation 11 Welding procedure 12 Torque values and fixing selection 13 Installation examples axle side body rail mount 14 T...

Page 3: ...ld cause a hazardous operating condition Upon completion of the load cell installation you or an appropriately trained service engineer will need to install a weighing indicator and calibrate the syst...

Page 4: ...ttach the superstructure to the chassis this will result in an alternate load path that will degrade weighing system accuracy Typical applications include waste trucks tippers tankers flatbeds and van...

Page 5: ...perstructure frame member Mounting angles provides additional strength Spreader cover plate 3 Top welded mounting bracket Bottom welded on mounting bracket Top bolted mounting bracket In line mounted...

Page 6: ...y have limited access for inboard facing cable exit For this reason inboard facing cabling is usually used only with in line mounted load cells Connector protection Flintec recommends that a protectiv...

Page 7: ...ensure that the modified structure is strong enough to prevent not only permanent elastic bending so that upper structural elements will not contact lower elements and create an alternative load path...

Page 8: ...Structure Optimum performance of DSB7 is dependent upon a solid mounting base for the load cells Steel brackets of heavy construction are required Since this is a thicker section than usually found on...

Page 9: ...e regardless of road condition Frame Rail Inspection Inspect the frame rails to ensure they are clean straight and free of cracks corrosion pitting burrs or any other imperfections that may affect the...

Page 10: ...t deeper than 25 mm Attach the mounting angle bracket using BS ISO DIN Grade 10 9 SAE Grade 8 quality bolts Grade C lock nuts and a hardened washer under each lock nut The bolts must have a diameter o...

Page 11: ...eld upper mounting bracket securely to the superstructure using a low hydrogen process and AWS E7018 rod or equivalent DO NOT WELD BEARING PLATES YET See CAUTION on page 10 before proceeding with weld...

Page 12: ...lectrical current flow through the load cell attach ground strap directly to the structure on the same side of the load cell on which welding is being done Complete the attachment of the superstructur...

Page 13: ...all be avoided The preheat temperature shall be a MINIMUM of 20 C 68 F and a MAXIMUM of 65 C 150 F Cleaning Before Welding Bracket components and bearing plates shall be visually inspected to verify t...

Page 14: ...ded M16 1 5 fine 12 9 350 380 Nm High dynamic loads DSB7 15 t 33000 Lbs Top and end bolts M24 2 fine 10 9 1000 1100 Nm Recommended M24 2 fine 12 9 1200 1300 Nm High dynamic loads 12 Socket Head Cap Sc...

Page 15: ...e l Welded ribs l Load cell inverted l In line l Top spacer l Welded ribs l Outboard l No spacers l Bolted to body l Load cell inverted l In line l No spacers l Welded to body l Load cell inverted l P...

Page 16: ...lly Y2 X Y Y1 Z Z1 D L3 L3 L2 L1 C1 C2 H 4 x T1 Optional spacer D D Specifications DSB7 7 5 t DSB7 15 t Rated 0utput RO 2 0 mV V 1 at 7 5t 2 0 mV V 1 at 15 t Zero balance 0 2 RO or better Combined err...

Page 17: ...or cable sockets Extender cables Junction box to indicator cabeles On board weighing load cells and extensometers have 5 meter cable complete with moulded 4 pin M12 MALE cable as standard Male Female...

Page 18: ...cables are routed and secured in protected areas of the frame Indicator installation see Indicator Operators Manual System calibration see Indicator Operators Manual Routine Maintenance To ensure you...

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