Model 7036-HD
- Digs 7 foot 0 inches (2.1M) deep; up to 36 inches (91.4CM) wide.
- Vari-Crowd hydrostatic transmission for infinitely variable crawl speeds.
- HD means "Heavy Duty" for difficult digging conditions including rock.
 
 
 
 
GENERAL SPECIFICATIONS
Weight Standard Unit less accessories.....28650 pounds (12994kgs)
Ground Bearing Pressure8.0 PSI (.52KG/CM2) with 18 inch (457MM) pads.
Power Unit212 cu. in. (3.44L) Diesel DD 4-53

Horsepower

        102HP (76KW).....@2000RPM

Wheel TransmissionHelical gear unit with high-torque capacity.

5 digging wheel speeds plus one reverse speed.

1.6-12.9 RPM forward.

Crawler Drive Vari-CrowdHydrostatic Drive - 2 speed transmission with Hi-Lo range for a total of four ranges forward or reverse:

        1-Lo, variable to 4 FPM (1.2M/Min.)

        1-Hi, variable to 40 FPM (12.3M/Min.)

        2-Lo, variable to 20 FPM (6.1M/Min.)

        2-Hi, variable to 219 FPM (67M/Min.)

                    2.5 MPH (4KM/HR)

ClutchMain Clutch

        12 inch (305MM) single plate.

         Single lever controls all operations.

Digging Clutch

          8 inch (203MM) two plate, adjustable to           load requirements.

CrawlersCrawler Track

          18 inch (457MM) wide rolled section            grousers bolt to reinforced drop-forged            rails, joined with bushed 11/2 inch            (38.1MM) induction hardened pins.

Sprockets...wide spaced alloy steel teeth drive on both ends of pins.

8 lower track rollers. 1000 hour lube service. Anti-friction bearings, sprockets and idles.

Crawler Differential

         Hypoid unit

         Alloy steel heat-treated shafts

Hydraulic Brakes18 inch (457MM) hydraulic disc steer brakes.

Independent control for each track.

Main FrameAll welded, high-grade steel box type girder frame.
BoomSingle reinforced high-tensile steel weldment.
Boom Slide Bar HingeGreater flexibility for digging curves.
TrucksFront & Rear Upper Truck.

Adjustable for variable widths.

Split wheels for easy replacement and adjustment.

3 inch (76.2MM) diameter alloy steel shaft mounted on heavy-duty self-aligning spherical bearings.

Lower Truck

Steel weldment body.

Double tapered roller bearing mounted wheels.

Double lip seals for 100 HR. lube.

Bolt-on wheel rims for easy replacement - 10 inch (254MM) diameter.

Stay Rods

Front & rear tubular - compression mounted. Extra heavy duty.

HYDRAULIC EQUIPMENT
Hydraulic Boom Hoist Transmission2 high-torque, hydraulic motors for raising and lowering front and rear independently.
Hydraulic PumpsConveyor drive from direct mounted piston pump for variable belt speed and conveyor shift.

Separate pumps for independent control of hydraulic boom hoist.

Crawler drive pump - variable displacement over center axial piston pump.

Hydraulic ValvesValves equipped with integral direct acting cartridge relief valves. Factory set and sealed.
Hydraulic ReserviorCapacity - 60 gals. (227L)

Equipped with high-capacity return line filter, charge pump, suction filter, cartridge type. Sealed hydraulic system.

Oil CoolerHigh-capacity, air-to-oil hydraulic oil cooler.
DIGGING WHEEL
Digging Wheel RimsOne-piece high-tensile 1 inch (25.4MM) thick steel.

Drilled for 15 or 18 bucket mounting.

Large heat-treated alloy steel segments welded to rims.

Rear Rock GuardProtects bucket backs and lower trucks.
Buckets & Bucket Backs18 flush, contour mounted 1 inch (25.4MM) thick high-tensile steel buckets.

ROTO teeth with holders bolted to buckets.

11/2 inch (38.1MM) thick bucket backs.

ConveyorExclusive "V" conveyor with 30 inch (762MM) wide belt.

Vulcanized "V" guide.

Hydraulic conveyor shift and speed control from operator'sposition.

Conveyor DrivePatented planetary gear drives with internally mounted hydraulic motors at each end.

No chains or sprockets.

Discharge Speed 200-1050 FPM (61-320M/Min.).

Speed and direction independently controlled.

Digging Wheel Drive ShaftOne piece 2 15/15 inch (74.6MM) diameter.

Heat-treated alloy steel on sealed bearings.

Drop-forged hubs keyed to shaft:

accommodate heat treated alloy steel

split drive sprockets.

Conveyor DriveExternally mounted hydraulic motors drive pulleys through totally enclosed gear train.

One motor at each end of conveyor.

No chains or sprockets.

Discharge speed:  215-1000 FPM (65.5-304.8M/min).

Speed and direction independently controlled.

Digging Wheel Drive ShaftOne piece.........2-15/16" (74.6MM) heat-treated alloy steel on sealed bearing.

Drop-forged hubs keyed to shaft accommodate heat-treated drop-forged alloy steel split-drive sprockets

OPTIONAL EQUIPMENT
Cat.D3304 B-NA engine.

100HP (74.6KW) @ 2150RPM.

DD-4-53T engine.

185 HP (138KW) @ 2500 RPM.

#90 Spade Teeth, Carbide Teeth

18 inch (457MM) smooth weld on track shoes.

Hydraulic crumbing shoe

Hydraulic track adjusters

For difficult or unusual digging conditions, alternate tooth patterns available.

Please Consult With Factory For Additional Options.

NOTE: In accordance with varying material situations, and the Company's policy of constant product improvement, these specifications are subject to change without notice and without incurring responsibility to units previously sold.

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