Bucket
John Deere 844K-III Z-Bar Aggregate Handler Buckets
| Bucket Type |
9.3 yd3 (7.1 m3) |
9.8 yd3 (7.5 m3) |
| Bucket Breakout Force |
55750 lbf (248 kN) |
53555 lbf (238 kN) |
| Bucket Width |
139.4 in (3540 mm) |
139.4 in (3540 mm) |
| Capacity, Heaped |
9.3 yd3 (7.1 m3) |
9.8 yd3 (7.5 m3) |
| Capacity, Struck |
7.8 yd3 (5.9 m3) |
8.1 yd3 (6.2 m3) |
| Tipping Load, Straight, No Tire Deflection |
61099 lb (27714 kg) |
60784 lb (27571 kg) |
| Rated Operating Load |
23992 lb (10883 kg) |
23833 lb (10811 kg) |
| Operating Weight |
80052 lb (36311 kg) |
80318 lb (36432 kg) |
| Bucket Weight with Bolt-On Cutting Edge |
9030 lb (4096 kg) |
9300 lb (4218 kg) |
Dimensions
Deere 844K-III dimensions with 9.3 yd3 (7.1 m3) bucket (material-handling with bolt-on edge)
| A. Height to Top of Cab |
148 in (3760 mm) |
| B. Hood Height |
107.9 in (2740 mm) |
| C. Ground Clearance |
18.2 in (463 mm) |
| D. Length from Centerline to Front Axle |
72.8 in (1850 mm) |
| E. Wheelbase |
145.7 in (3700 mm) |
| F. Overall Length w/ Bucket on Ground |
396 in (10060 mm) |
| G. Height to Hinge Pin, Fully Raised |
181.9 in (4620 mm) |
| H. Dump Clearance, 45°, Full Height |
122 in (3100 mm) |
| I. Reach, 45° Dump, Full Height |
66.1 in (1680 mm) |
| J. Reach, 45° Dump, 7 ft (2.13 m) Clearance |
94.9 in (2410 mm) |
| K. Maximum Digging Depth |
4.4 in (112 mm) |
| L. Maximum Rollback at Ground Level |
45.2° |
| M. Maximum Rollback, Boom Fully Raised |
60.0° |
| N. Maximum Bucket Dump Angle, Fully Raised |
41.2° |
| Tread Width |
96.1 in (2440 mm) |
| Width over Tires |
134.2 in (3408 mm) |
| Loader Clearance Circle, Bucket Carry Position |
604 in (15350 mm) |
| Turning Radius (outside tire) |
248 in (6300 mm) |
Engine Details
| Number of Cylinders |
6 |
| Engine Make |
John Deere |
| Engine Model |
John Deere PowerTech PSS 6135 |
| Displacement |
824 cu in (13.5 L) |
| Net Power |
380 hp (283 kw) |
| Power Measured @ |
1600 rpm |
| Torque |
1379 lb ft (1870 Nm) |
| Torque Measured @ |
1000 rpm |
| Torque Rise |
44% |
| Aspiration |
Series turbocharged, charge air cooled |
| Emission Standards |
EPA Final Tier 4 / EU Stage IV |
Transmission
| Type |
Countershaft-type PowerShift 5-speed transmission with lockup torque converter |
| Torque Converter |
Single stage, dual phase with freewheeling stator |
| Shift Control |
Electronically modulated, adaptive, load and speed dependent |
| Operator Interface |
Steering-column or joystick-mounted F-N-R and gear-select lever; Quick-Shift button on hydraulic lever |
| Shift Modes |
Manual/auto (1st – 5th or 2nd – 5th); Quick-Shift button with 2 selectable modes: kick-down or kick-up/down; adaptive clutch cutoff |
| Number of Gears |
5F + 3R |
| Max Travel Speed (Forward) |
24.9 mph (40 km/h) |
| Max Travel Speed (Reverse) |
18.3 mph (29.4 km/h) |
Axles and Brakes
| Final Drives |
Heavy-duty mid-board planetary |
| Differentials |
Conventional rear and front axles |
| Rear Axle Oscillation |
16° (8° each direction) Stop to Stop (with 875/65R29 tires) |
| Service Brakes |
Outboard, forced oil cooled, multi disc (conform to ISO 3450) |
| Parking Brakes |
Automatic spring applied, hydraulically released, sealed wet multi disc (conform to ISO 3450) |
Operational Specs
| Operating Weight |
80052 lb (36311 kg) / 80318 lb (36432 kg) |
| Rated Operating Load |
23992 lb (10883 kg) / 23833 lb (10811 kg) |
| Operating Voltage |
24 V |
| Alternator |
130 amps |
| Battery |
2x 12 V, CCA 1400 |
| Articulation Angle |
80° arc (40° each direction) |
| Standard Tire Size |
875/65R29, 1 Star L-3 Michelin |
Hydraulic System
| Type |
2 variable-displacement, load-sensing axial-piston pumps; closed-center system |
| Total Pump Flow |
145 gal/min (548 L/min) |
| System Relief Pressure (Loader) |
4000 psi (27580 kPa) |
| System Relief Pressure (Steering) |
3500 psi (24132 kPa) |
Hydraulic Cycle Times
| Raise |
6.1 sec |
| Dump |
1.9 sec |
| Lower (float down) |
3.6 sec |
| Total |
11.6 sec |
John Deere 844K-III Filters
| Engine Oil Filter |
RE561823 |
| Primary Air Filter Element |
AT311066 |
| Secondary Air Filter Element |
AT311067 |
| Fuel Tank Breather Filter |
H216169 |
| Primary Fuel Filter |
RE539465 |
| Final Fuel Filter |
DZ112918 |
| Auxiliary Fuel Filter (If Equipped) |
AT365869 |
| Fast Fill Fuel Breather Filter (If Equipped) |
T225008 |
| Hydraulic System Return Filter |
AT335977 |
| Hydraulic Reservoir Breather Filter |
AM39653 |
| Transmission Oil Filter |
AT468647 |
| Axle Oil Filter |
AT489922 |
| Cab Recirculating Filter |
AT307501 |
| Cab Fresh Air Filter |
AT191102 |
Service Refill Capacities
| Fuel Tank Capacity |
141 gal (534 L) |
| DEF Tank Capacity |
6.9 gal (26.3 L) |
| Engine Oil Capacity |
11.1 gal (42 L) |
| Cooling System Capacity |
20.8 gal (78.8 L) |
| Hydraulic System Capacity (w/ Tank) |
48.7 gal (184.3 L) |
| Transmission Oil Capacity |
7.4 gal (28 L) |
| Front Axle/Diff Fluid Capacity |
18 gal (68 L) |
| Rear Axle/Diff Fluid Capacity |
18 gal (68 L) |
| Parking Brake Oil Capacity |
0.19 gal (0.71 L) |
