Specifications, Service and Repair of Farm and Lawn Tractors

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John Deere 4400 Attachments

John Deere 4400 Front End Loader

420 Loader Specifications

Type of Attachment - Front End Loader
Compatibility - John Deere 4400
Bucket Width - 1550 mm (61 in.)
Bucket Length - 618 mm (24.3 in.)
Bucket Mass - 86 kg (189 lb)
Hydraulic System Rated Flow - 32.6 L/Min (8.6 gal/min)
Maximum Pressure - 17.2 MPA (2494 psi)
Maximum Lift Height To Pivot Pin - 2225 mm (87.6 in.)
Bucket Level Clearance - 2060 mm (81 in.)
Bucket Dumped Clearance - 1679 mm (66 in.)
420 Loader Overall Length - 3088 mm (121.6 in.)
Digging Depth - 152 mm (6 in.)
Reach At Max Lift Height - 774 mm (30.5 in.)
Bucket Reach on Ground - 1362 mm (53.6 in.)
Max Dump Angle - 43°
Max Dump Angle at Ground - 116°
Max Rollback Angle - 23°
Rollback Angle at Full Height (SAE) - 64°
Overall Height In Carry Position - 1385 mm (54.5 in.)
Lift Capacity To Max Height at Pivot Point - 543 kg (1195 lb)
Lift Capacity To Max Height - 407 kg (895 lb)
Lift Capacity To 1.5 m (59 in.) at Pivot Point - 723 kg (1591 lb)
Lift Capacity To 1.5 m (59 in.) - 561 kg (1234 lb)
Lift Capacity With Forklift to Max Height - 290 kg (640 lb)
Breakout Force At Pivot Point - 11980 N
Breakout Force At 500 mm (19.7 in.) Forward of Pivot Point - 8610 N
Bucket Rollback Force At Max Height - 12234 N
Bucket Rollback Force At 1.5 m (59 in.) Lift Height - 14964 N
Bucket Rollback Force At Ground Level Line - 11676 N

Attaching Ballast Box to 4400 Tractor with Three-Point Hitch - Back up tractor to ballast box with hitch points approximately in alignment. Engage tractor parking brake and/or place transmission in "Park". Shut off tractor engine and remove key. Attach tractor draft links. Fasten with quick-lock pins (stored on tractor draft links). Align center link with upper hole in ballast box mounting straps and install center link mounting hardware. Start tractor engine. Slowly pull hitch control lever to raise ballast box. Check for interference. Lower hitch to ground and adjust center link and/or lift links if necessary.

Removing 420 Loader - Lift up on latch and push forward all the way into notch. Extend lift cylinders. Masts will lift out of rear frames. Raise masts high enough to clear front tires. Engage tractor parking brake and/or place transmission in "Park". Shut off tractor engine and remove key. Move control lever(s) back and forth and side-to-side several times to relieve system pressure. Disconnect hoses at couplers and install dust plugs and caps. Store hoses on lift cylinder, DO NOT lay them on the ground. Start tractor engine. Disengage tractor parking brake and/or place transmission in reverse and slowly move away from 420 loader. Remove ballast box.

430 Loader Specifications

Type of Attachment - Front End Loader
Compatibility - John Deere 4400
430 Loader Height (to pin) - 101,4 in. (2,57 m)
Clearance, dumped bucket - 78,3 in. (1,98 m)
Dump reach - 25,6 in. (0,65 m)
Dump angle - 45
Reach at ground - 57,5 in. (1,46 m)
Rollback angle - 30
Breakout force (at 0,8 m) - 3299 lb (1496 kg)
Lifting at full height (at 0.8 m) - 1259 lb (571 kg)
Raise time to height - 3,5 s.
Bucket dump time - 1,8 s.
Lowering time - 2,5 s.
Rollback time - 2,3 s.

Attaching and Detaching Attachments - If equipped with 4-in-1 Bucket or Boom-Mounted Front Blade with Hydraulic Angling Kit; Disconnect hydraulic hoses from attachment as follows: Move control lever(s) back and
forth and side-to-side (if applicable) several times to relieve system pressure. Push and hold collar on female coupler. Disconnect male coupler. Release collar on female coupler. Place cap on hose end and insert plug into female coupler. Repeat Steps for remaining hydraulic hose connection. Roll attachment back slightly and raise boom approximately 460 mm (18 in.) above ground level. Remove quick lock pin from each side of attachment. Store pins in storage position. Extend bucket cylinders until pin releases from strap on each side of attachment. Lower 430 loader boom and move away from attachment. Carrier will release from hook on each side of attachment. To attach attachment, reverse the above steps.

John Deere 4400 Backhoe

47 Backhoe Specifications

Type of Attachment - Backhoe
Compatibility - John Deere 4400
47 Backhoe Digging Depth - 2,29m (90 in.)
Weight - 460kg (1013 lb)
Swing Arc - 180 degrees
Loading Height (bucket at 60°) - 1,8m (70 in.)
Reach From Center Line of Swing Pivot - 2,9m (114 in.)
Transport Height - 1,8m (69 in.)
Bucket Rotation - 180 degrees
Loading Reach (bucket at 60°) - 1,09m (43 in.)
Transport Overhang - 1,07m (42 in.)
Undercut - 76cm (30 in.)
Stabilizers Spread Width (Raised) - 1,55m (61 in.)
Stabilizers Spread Width (Lowered) - 2,26m (89 in.)
Boom Lift Capacity - 245kg (540 lb)
SAE Dipperstick Digging Force - 8,92kN (2005 lb)
SAE Bucket Digging Force - 12,63kN (2840 lb)
Bucket Control Main Relief Valve Pressure - 15,51mPa (2250 psi)

John Deere 4400 Snowblower

59" Snow blower Specifications

Type - Front Mount, 2-Stage
Compatibility - JD 4400
Width - 149,9 cm (59-inch)
Height of Opening - 58,4 cm (23-in.)
Housing Thickness - 14 ga (0.075-in.)
Side Panel Thickness - 7 ga (0.177-in.)
Auger Diameter - 16-in. (40,6 cm)
Auger Speed - 160 rpm at rated engine speed.
Impeller Speed - 800 rpm at rated engine speed.
Impeller Diameter - 40,6 cm (16-in.)
Lift System - Hydraulic
Lift Height - 19,1-20,3 cm (7-1/2-8 in.)
Chute Control - Hydraulic
Chute Rotation - 200 Degrees
Weight (Approximate) - 201 kg (450 lbs)
Input Shaft End Play (maximum) - 0,076 mm (0,003 in.)
Blower Case Shaft (End Play) - 0,025-0,15 mm (0,001-0,006 in.)
Blower Case Shaft (Backlash) - 0,15-0,4 mm (0,006-0,016 in.)
Gear Box and Blower Case Grease Capacity - 0,4 L (13.5 oz)
Socket Head Cap Screws Torque - 26 Nm (228 lb-in.)
Cap Screws Torque - 41 Nm (34 lb-ft)
Gear Box Cover Cap Screws Torque - 20-24 Nm (180-216 lb-in.)
Gear Case Mounting Cap Screws Torque - 47,5 Nm (35 lb-ft)
Pipe Plug Torque - 18 Nm (160 lb-in.)
Gear Case Grease - GL-5 Gear Oil-SAE 80W-90

59" Snowblower Rotor and Fan Removal and Installation - Remove rotor assembly. Remove cap screws and lock washers securing support to worm gear case. Remove three flanged bolts securing rotor to each side of housing. Remove rotor by pulling and lifting it forward out of housing. Remove bearings, shear coupling and flighting. Loosen locking collar set screw. Loosen locking collar from bearing by tapping it counterclockwise with a punch and hammer. Remove flanged and bearing and locking collar. Remove cotter pin and drilled pin. Remove shear bolt and coupling. Slide or pull flighting off drive shaft. Replace fan or coupling plate and reinstall assembly. Tighten nut on cap screw securing fan coupling to gear case shaft. Replace flighting bearings. Remove bearing with a slide hammer puller on each end of flighting. Press new bearing flush to end of flighting shaft.

John Deere 4400 Mower

60-Inch Mower Deck Specifications

Type - Mid-Mount
Compatibility - JD 4400
Cutting Width - 1524 mm (60 inch)
Number of Blades - 3
Spindles - 25.4 mm (1.0 in.)
Weight - 147 kg (325 lbs)
Gear Case Grease Volume - 240 ml (8 oz)
Input Shaft End Play - 0.0-0.06 mm (0.0-0.002 in.)
Output Shaft End Play - 0.0-0.03 mm (0.0-0.001 in.)
Blade Bolt Torque - 102-123 Nm (75-91 lb-ft)

72-Inch Mower Deck Specifications

Type - Mid-Mount
Compatibility - JD 4400
Cutting Width - 184.9 cm (72.8 in.)
Number of Blades - 3
Spindles - 25.4 mm (1.0 in.)
Weight - 203 kg (448 lb)
Gear Case Grease Volume - 0.5 L (1 pt)
Input Shaft End Play - 0.0-0.06 mm (0.0-0.002 in.)
Output Shaft End Play - 0.0-0.03 mm (0.0-0.001 in.)
Blade Bolt Torque - 102-123 Nm (75-91 lb-ft)

272 Mower Specifications

Type - Rear Mount
Compatibility - JD 4400
Cutting Width - 185 cm (72.8 in.)
Cutting Height - 51-127 mm (2-5 in.)
Number of Blades - 3
Belt - B-Section
Mounting - Category 1
PTO Speed - 540 rpm
Weight - 232 kg (510 lb)

Gear Case Disassembly and Inspection - Remove the gear case from the 272 mower deck. Inspect the housing for cracks. Remove the cover from the gear case. Inspect cover for wear or damage. Remove the input shaft assembly from the gear case. Inspect the bevel gear for chipped, worn or broken teeth. Inspect shaft for wear and straightness. Check the keyway of the shaft for wear or damage. Remove and inspect the shaft key. Inspect bearings for wear or galling. Remove output seal from gear case. Remove snap ring, bearing, and spacer from output shaft. Remove snap ring from gear case. Remove output shaft from housing. Remove the bearing from the shaft. Inspect shaft for wear and straightness. Inspect the pinion gear for chipped, worn or broken teeth. Inspect bearings for wear or galling.

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