SD7 BULLDOZER

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Main specifications

Operatingweight(not including ripper)--------------------------------------------------------------------------------23800㎏

Ripperweight---------------------------------------------------------------------------------------------------------------3900㎏

Groundpressure(without ripper)----------------------------------------------------------------------------------------71.9kPa

Trackcenter distance ----------------------------------------------------------------------------------------------------1980mm

Gradeability ---------------------------------------------------------------------------------Latitude30 ° Transverse 25°

Groundclearance ----------------------------------------------------------------------------------------------------------404mm

Overalldimensions(L×W×H) ： -------------------------------------5677×3500×3402(with straighttilting blade)

Diesel engine specifications

Model A-----------------------------------------------------------------------------------------------NT855-C280(Cummins)

Ratedspeed------------------------------------------------------------------------------------------------------------2100RPM

Flywheelpower(speed at 2100 rpm) ----------------------------------------------------------------------------------169kW

Min.Fuel Consumption ---------------------------------------------------------------------------------------≤235(g/Kw.h)

Model B-----------------------------------------------------------------------------------------------C6121ZLG10(Shanghai )

Ratedspeed------------------------------------------------------------------------------------------------------------2100RPM

Flywheelpower(speed at 2100rpm) ---------------------------------------------------------------------------------169kW

Min.Fuel Consumption ----------------------------------------------------------------------------------------≤222(g/Kw.h)

Theorytravel speed (km/h)

1stgear forward0-3.9 1st gear backward 0-4.8

2ndgear forward0-6.5 2nd gear backward 0-8.2

3rdgear forward0-10.9 3rd gear backward 0-13.2

Dozingoperation rate(moving distance 40m) 350m³/h

Torqueconverter

Torqueconverter used in SD7 bulldozer is power separating hydraulic-mechanic type.

Transmissionassembly

Itintegrates center drive, transmission and speed changing control valve into onecomponent. It can be assembled or disassembled as a assembly or as a part. Itis very convenient to service. Transmission is multi-stage planetary gear driveto realize modular assembling and disassembling. The shift can be changed among1st gear, 2nd gear, 3rd gear forward or reverse rapidly, throughmulti-functional control valve.

Steeringand braking clutch

Steeringclutch and braking clutch are adjustment free, oil-type , multi-disc clutch.The braking clutch is pressed by spring, separated hydraulicly, constant meshedtype. Steering clutch is hydraulic pressed, non-constant engaged clutch. Theaction of steering and braking is combined, operation manually to realizesteering slowly, sharply and braking. The braking of entire machine can berealized through the pedal. Parking braking rod is designed to keep theundercarriage system in braking condition when starting the engine andguarantee the machine not to slip on slope when starting the engine.

Finaldrive

Finaldrive is two-stage planetary reduction gear mechanism. It is mounted at outsideof steering and braking clutch. Combined sprocket segment is very convenientfor assembling, disassembling and service.

Hydraulicsystem of the machine

Itis composed of oil pump, transmission control valve, steering and braking controlvalve, sequence valve, relief valve at torque convertor outlet, filter andlines.

Mainpump-------------------------------------------------------------------------------------------------------------Gearpump

Oilflow----------------------------------------------------------------------------------------------------------------160　L/min

Workingpressure ------------------------------------------------------------------------------------------------------3.1　MPa

Rops with air conditioner cab

Thecab is hexagonal thin wall box-type structure. Glass is mounted at sixsides with wide viewing area. Pulling and pushing glass is installed at backside. Air conditioner is top-mounted with functions of cooling and heating. Thestructure of Rop is rigid. It can protect the driver efficiently when thebulldozer is in special condition.

Implementhydraulic system

Implementhydraulic system can control lifting, lowing and tilting of the blade. It alsocan control lifting, lowing of the ripper. It mainly consists of oil pump,cylinder, inlet valve group diverter valve group, oil tank line and controllingparts.

Mainpump ------------------------------------------------------------------------------------------High pressure gear pump

Oilflow --------------------------------------------------------------------------------------------------------------194　L/min

Systemworking pressure-------------------------------------------------------------------------------------------18.6　MPa

Leftand right undercarriage system

Thetrack is triangle shape. The sprocket is elevated. There are two idlers infront and at rear of the frame and seven track roller. Recoil spring andcylinder adjuster is mounted at the undercarriage. The rear end ofundercarriage frame is supported on the pivot. The front end is articulatedwith the equalizer bar. Choosing different undercarriage system according todifferent implement. The customer is required can guarantee center gravity ofthe machine to be at best efficient position. Choosing different width of trackshoe can ensure the bulldozer developing its optimum traction efficiency.

Maintenancefilling capacity

Fueltank --------------------------------------------------------------------------------------------------------------------- 450L

Watertank of cooling system ---------------------------------------------------------------------------------------------118L

Camshaftbox of the engine-------------------------------------------------------------------------------------------------20L

Bevelgear case--------------------------------------------------------------------------------------------------------------150L

Implementoil tank---------------------------------------------------------------------------------------------------------100L

Pivotlubricating tank-------------------------------------------------------------------------------------------------------15L

Finaldrive ------------------------------------------------------------------------------------------------------------------15L

Optional implement and components (*ordinary)

1)cab

A、Rops with air conditioner cab 　＊

B、Rops cab

C、Rops canopy

2)Frontmounted implement

A、straight tilting blade　　　　　　＊

B、Angle blade

C、U-type blade

3)Rearmounted implement

A、single shank ripper　　　＊

B、three shanks ripper

C、back drawing mechanism

4)Trackshoe of undercarriage

Optionaltrack shoe width

A、510mm B、560mm 　　　　＊

C、660mm D、914mm

5)winchdozer used in forest, desert dozer, LGP dozer ,HW dozer can be chosen accordingto special requirements of customer.

Q:I've read somewhere that HSD (high speed diesel) is used for the vehicles that we use on public roads. LDO on the other hand can be used for slower RPM diesel engines such as heavy equipments.I'm confused if LDO can be used for heavy equipments since it is also used for boilers and furnaces. Any particular specifications I should look for so LDO can be properly used for heavy equipments?Thanks.: I wouldn't use ldo on slower rpm diesels sounds like a recipe for disaster. If you are in doubt call the manufacturer of your heavy equiptment and ask them, I think there is some additives missing in ldo that heavy equiptment needs. Be carefull....Steve

Q:One hundredA with a bulldozer (crawler) to B mortgage, borrowing, I would like to ask what kind of mortgage registration procedures?: 2, "how to prevent the mortgagor from selling the mortgaged property without authorization?"" : mortgage registration, registration, you can fight against the purchase of third people.3, in addition, that is: the chattel mortgage, not to register, only registered as a public document, that is to say: the registration of chattel mortgage, against third people; unregistered chattel mortgage, mortgage mortgage contract has since established and effective just can't resist the third person: the real estate (such as real estate and vehicle) mortgage, without registration mortgage contract, mortgage is not established without the consent of the.

Q:In character as Umaga, Umaga can't speak English, he can't even talk normal and calmly in his Samoan language without giving a Samoan Spike or Butt Bump of Doom in the process, and he'd probably be overly aggressive with and attack those levers and controls in the cockpit.With that being said, how much would the WWE have to pay to ride in that 747 with him as the pilot?: It would depend on who the co-pilot is. If it's his former manager and current ECW general manager Armando Estrada, I could be tempted. Estrada could at least keep him under control. If it's anyone else, especially Hillary Clinton, screw it. I wouldn't trade my life for money!

Q:so i was looking around for cpu's and i'm currently using a phenom II x6 and noticed that the bulldozer 6 cores are cheaper, and have better specs? how comes they are cheaper. im just wondering. cheers: bulldozers are inferior to phenom II (according to benchmarks) it's probably because 6 cores = 3 modules (so technically 3 cores? rip off!) it's actually the fault of the way software is optimized (so why did they make it? they can't expect a revamp of everything just because they made a processor named bulldozer)

Q:will they? or they will be compatible, but not optimal for these motherboards? if they will be using another socket wich one is it?, and can i buy one of those motherboards already to put another cheap cpu on it while i wat for them?: Yeah, they will. Better wait.

Q:I'm going to buy a new CPU, and my budget is upto Rs.6500(for Processor) Show me which is better than other and How?: Bulldozers turned out to be a big dissapointement. I would not fork out the extra money to buy it. You can get a good Phenom for 50% the price of a bulldozer. Not to mention you can just invest in a better card.

Q:Is it against the law for a Tractor Bulldozer that not yours be parked in your driveway?: Depends on the country you live in and the laws UK residential areas do not allow commercial vehicles parked on driveways

Q:What is the difference between a bulldozer and a grader? Why?: The bulldozer uses the shovel or the ripper to make the ground roughly flat, and the grader adopts the roller to keep the floor compacted and the effect is better.

Q:I'm somewhat new to PC gaming and I have no estimate on how rapidly prices will drop on the Phenom II Processors during Bulldozer release. Should they go down instantly or slowly in a couple of months, and how much would they go down? By $25, $50, or even $100?: By $25

Q:I'm looking for a job. I'm a bulldozer driver, looking for a job.: The first job: how to cheat1, to the local formal talent market, do not believe that the so-called roadside information2, in the regular online resume, not to believe that some companies sign unclear information3, if you receive the interview requirements, you first analysis of each other's company4, to log on the Internet, in advance to understand the details of the company, and determine where you want5, roadside recruitment information do not believe, and some are to bring you to less places extortionSecond: call each other to analyze the comprehensive factors1, contrast - according to the recruitment of inspiration requirements, list their own situation classification: conformity, basic conformity, not consistent.2, analysis - you are ready to apply for the unit status, industry situation, competition and other analysis of the situation, to understand the relevant information.3, resume - resume, in addition to the requirements of the public, such as different from person to person, creative resume design will have very good results4, for example, to create a good "a book" resume (collection of their own articles)5, single - release (published from single copy).6, work - resume (to bring their own hungry work with "video") (personal circumstances, work performance and other forms recorded).

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