Specifications, Service and Repair of Farm and Lawn Tractors

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John Deere 790 Attachments

John Deere 790 Front End Loader

70 Loader Specifications

Type of Attachment - Front End Loader
Compatibility - JD 790
Height (to pin) - 77 in. (195 cm)
Clearance, dumped bucket - 62.5 in. (158 cm)
Dump reach - 31 in. (78 cm)
Dump angle - 45
Reach at ground - 46 in. (116 cm)
Rollback at ground - 22
Breakout force (at pin) - 1300 lb (589 kg)
Breakout force (bucket) - 1570 lb (712 kg)
Lift to full height (at pin) - 755 lb (342 kg)
Bucket capacity - 0.17 cu yd (0.1 cu m)
Bucket width - 48 in. (121 cm)
Raise time to height - 2.7 sec
Bucket dump time - 2.0 sec
Lowering time - 2.6 sec
Rollback time - 2.0 sec

419 Loader Specifications

Type of Attachment - Front End Loader
Compatibility - John Deere 790
Height (to pin) - 88 in. (223 cm)
Clearance, dumped bucket - 66.3 in. (168 cm)
Dump reach - 39.7 in. (100 cm)
Dump angle - 45
Reach at ground - 51.5 in. (130 cm)
Rollback at ground - 23.4
Rollback, raised - 99
Breakout force (at pin) - 1616 lb (733 kg)
Breakout force (at 500 mm) - 1378 lb (625 kg)
Breakout force (bucket) - 1124 lb (509 kg)
Lift to full height (at pin) - 610 lb (276 kg)
Lift to full height (at 500 mm) - 527 lb (239 kg)
Lift to 1.5m (at pin) - 829 lb (376 kg)
Lift to 1.5m (at 500 mm) - 730 lb (331 kg)
Bucket width - 53 in. (134 cm)

300 Loader Specifications

Type of Attachment - Front End Loader
Compatibility - JD 790
Reach At Max. Lift Height - 33 in. (845 mm)
Reach With Bucket on Ground - 53.7 in. (1365 mm)
Max. Dump Angle - 40.5 degrees
Max. Dump Angle at Ground - 117 degrees
Max. Rollback Angle (G) - 21 degrees
Rollback Angle at Full Height (SAE) - 101 degrees
Lift Capacity To Max. Height at Pivot Pin - 740 lb. (336 kg)
Lift Capacity To Max. Height - 547 lb. (248 kg)
Lift Capacity To 1.5 m (59 in.) at Pivot Pin - 961 lb. (436 kg)
Lift Capacity To 1.5 m (59 in.) - 740 lb. (336 kg)
300 Loader Raising Time - 3.2
300 Loader Lowering Time - 1.63
Bucket Dumping Time w/Regen - 2.71/1.32
Bucket Rollback Time - 1.38
Maximum Lift Height To Pivot Pin - 112.8 in. (2864 mm)
Breakout Force At Pivot Pin - 1,728 lb./ft. (7690 N)
Breakout Force 500 mm Forward of Pivot Point - 1,229 lb./ft. (5470 N)
Clearance With Level Bucket - 82 in. (2090 mm)
Clearance With Bucket Dumped - 68 in. (1727 mm)
Bucket Rollback Force At Max. Height - 1,160 lb./ft. (5160 N)
Bucket Rollback Force At 1.5 m (59-in.) Lift Height - 1,450 lb./ft. (6450 N)
Bucket Rollback Force At Ground Level Line - 1,115 lb./ft. (4960 N)
Digging Depth - 3.5 in. (89 mm)

John Deere 790 Backhoe

7 Backhoe Specifications

Type of Attachment - Backhoe
Compatibility - JD 790
Transport Height (Max.) - 5 ft. 9 in. (1.75 m)
Bucket Rotation - 180 deg.
Loading Height (Bucket at 60 Deg.) - 5 ft. 10 in. (1.78 m)
Digging Depth - 7.5 ft. (2.29 m)
Reach from Center of Swing Pivot - 9.5 ft. (2.9 m)
Swing Arc - 180 deg.
Loading Reach (Bucket at 60 Deg.) - 3 ft. 7 in. (1.09 m)
Ground Clearance - 9.5 in. (241 mm)
SAE Dipperstick Digging Force - 1,095 lb. (4870 N)
SAE Bucket Digging Force - 1,945 lb. (8651 N)
Boom Lift Capacity @ 36 Inches - 290 lb. (132 Kg)
Stabilizer Spread (Approx.) - 7 ft. 1 in. (2.16 m)
7 Backhoe Control Valve Main-Relief Setting - 1,700 psi (11 720 kPa)
Operating Weight (w/Standard Bucket and Subframe) - 787 Ib. (357 kg)
Bucket Options - 9, 13, 16, and 20 in. (23, 33, 41, and 48 cm)
Standard Bucket Width - 9 in. (23 cm)

John Deere 790 Snowblower and Blade

47-inch Snowblower Specifications

Type - Front Mount, Two-stage
Compatibility - JD 790
Cutting Width - 47 in. (1.2 m)
Overall Cutting Height - 23 in. (584 mm)
Auger Diameter - 16 in. (406 mm)
Rotor Fan Diameter - 16 in. (406 mm)
Chute Rotation - Hydraulic
Drive - Mid PTO
Hydraulic spout rotation - 200 degrees
Worm-gear drive - With durable cast-iron housing
Skid shoes - Three-position skid shoes
Snow-deflector spout - Adjustable
Weight (Approx.) - 400 Ib. (181 kg) for 47-in. model

59-inch Snow blower Specifications

Type - Two-stage, Front Mount
Compatibility - John Deere 790
Cutting Width - 59 in. (1.5 m)
Overall Cutting Height - 23 in. (584 mm)
Auger Diameter - 16 in. (406 mm)
Rotor Fan Diameter - 16 in. (406 mm)
Chute Rotation - Hydraulic
Drive - Mid PTO
Weight (Approx.) - 450 Ib. (204 kg)
Hydraulic spout rotation - 200 degrees
Worm-gear drive - With durable cast-iron housing
Skid shoes - Three-position skid shoes
Snow-deflector spout - Adjustable

380A Front Blade Specifications

Blade Model - 380A
Type - Front Mount
Cutting Width - 54 to 66 in. (1.37 to 1.68 m)
Cutting Width (Blade Angled at 30 Deg.) - 463/4 to 573/4 in. (1.19 to 1.45 m)
Cutting Depth - 4 to 51/2 in. (101 to 140 mm)
Blade Angling - 30 deg. left and right through tractor’s dual Bore aselective-control valve
Overall Height - 253/4 in. (657 mm)
Lift Height - 91/2 to 13 in. (240 to 330 mm)
Moldboard - 1/4-in. (6 mm) thick steel
Hydraulic Cylinders Type - Double-acting
Lift Cylinder Bore and Stroke - 2x81/2 in. (51x216 mm)
Angling Cylinder Bore and Stroke - 2x61/2 in. (51x165 mm)
Blade Shipping Weight - 474 Ib. (215 kg)
Attachment - 7 in. (178 mm) blade top extension

John Deere 790 Mower and Tiller

60-inch Mower Deck Specifications

Model - 261 Rear-Mounted Mower
Compatibility - JD 790
Cutting Width - 60 in. (1.5 m)
Cutting Height (Adjustable) - 2 to 6 in. (51 to 152 mm)
Overall Width - 72.5 in. (1.85 m)
Overall Length - 50 in. (1.27 m)
Overall Height - 37 in. (940 mm)
Blades - 3 Heat-Treated Alloy Steel - 2.5x20.5x.312 in. (63.5 x 521 x 7.9 mm)
Deck - One-piece stamped steel, 0.134 in. (3.4 mm)
Spindles - Greaseable from top
Gauge Wheels - Rear, semi-pneumatic, adjustable
Mower Drive - 540-rpm rear PTO through right-angle gearbox to B-section or C-section drive belt
Mower Lift - Through tractor’s rockshaft control
Net Weight - 370 Ib. (168 kg)
Attachment - Front-gauge-wheel kit

60-inch Mid-Mount Mower Deck Specifications

Type - Mid-Mount
Cutting Height - Adjustable, 1.1 to 7.8 in. (27.9 to 198.1 mm) / 1 to 8.75 in. (25 to 222.3 mm)
Overall Width - 72.5 in. (1.84 m)
Blades - 3, heat-treated alloy steel, 2.5x20.5x.312-in. (63.5 x 521 x 7.9 mm) thick
Deck - One-piece stamped steel, .177-in. thick (7 ga.)
Gauge Wheels - Adjustable, greaseable bearings
Gearbox - Spiral gear, John Deere design
Spindles - Greaseable from top
Mower Drive - Mid-PTO to driveshaft on mower
Mower Lift - Steel rod from rear rockshaft; optional mid-rockshaft cylinder for independent operation of mower
Net Weight - 325 Ib. (147 kg)

655 Rotary Tiller Specifications

Model - 655 Rotary Tiller
Compatibility - JD 790
Working Width - 55 in. (1.27 m)
Working Depth - Up to 7 in. (178 mm)
Cutting-Circle Diameter - 15 in. (381 mm)
Tine Shaft Bearing - Heavy-duty roller-type with double-lip seals
Tines - Hybrid-shaped, high-carbon, heat-treated steel
Tines Per Spider - 7
No. of Spiders - 6
Drive - Enclosed gearcase, jackshaft
Final Drive Chain - No. 80 endless roller chain with 11/4-in. (32 mm) pitch
Tractor PTO Drive - 540 rpm
Tine Shaft Speed - 196 rpm
Tine Tip Speed - 848 fpm (258 m/min.)
Mounting - Category 1 3-point hitch
Net Weight (Less Slip Clutch and Joint) - 436 lb. (198 kg)

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