John Deere 444J Automobile Parts User Manual


 
Refill Capacities (U.S.)
(continued)
544J
Differential (front and rear, each axle). . . . . . . . . . . 18 qt. (17 L)
Hydraulic Reservoir and Filters. . . . . . . . . . . . . . . . 25.5 gal. (96.5 L)
Wet-Disc Parking Brake . . . . . . . . . . . . . . . . . . . . . 10 oz. (0.3 L)
Hydraulic System/Steering
Pump (loader and steering). . . . . . . . . . . . . . . . . . . variable-displacement, axial-piston pump; closed-center,pressure-compensating system
Maximum Rated Flow . . . . . . . . . . . . . . . . . . . 50 gpm (189 L/m) @ 1,000 psi (6895 kPa)
System Relief Pressure (loader and
steering). . . . . . . . . . . . . . . . . . . . . . . . . . 3,650 psi (25 166 kPa)
Loader Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . two-function valve; single- or dual-lever controls; control lever lockout feature; optional third- and fourth-function valve with auxiliary lever
Steering (conforms to SAE J1511)
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . power,fully hydraulic
Articulation Angle . . . . . . . . . . . . . . . . . . . . . . 80-deg. arc (40 deg. each direction)
Hydraulic Cycle Times
Standard Z-Bar High-Lift Z-Bar
Raise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.8 sec. 5.8 sec.
Dump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 sec. 1.2 sec.
Lower (float down) . . . . . . . . . . . . . . . . . . . . . 3.2 sec. 3.2 sec.
Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2 sec. 10.2 sec.
Maximum Lift Capacity. . . . . . . . . . . . . . . . . . . . . .
with 2.5-cu.-yd. (1.9 m
3
) bucket with bolt-on edge
Lift at Ground Level. . . . . . . . . . . . . . . . . . . . . 29,596 lb. (13 425 kg) 26,074 lb. (11 827 kg)
Lift at Maximum Height. . . . . . . . . . . . . . . . . . 14,904 lb. (6760 kg) 12,996 lb. (5895 kg)
Turning Radius (measured to centerline of
outside tire). . . . . . . . . . . . . . . . . . . . . . . . . . . 16 ft. 3 in. (4.95 m) 16 ft. 3 in. (4.95 m)
Dimensions with Pin-On Bucket
Standard Z-Bar High-Lift Z-Bar
A Height to Top of Cab and Canopy. . . . . . . . . . . . 10 ft. 8 in. (3.24 m) 10 ft. 8 in. (3.24 m)
B Height to Top of Exhaust . . . . . . . . . . . . . . . . . . 10 ft.7 in. (3.23 m) 10 ft. 7 in. (3.23 m)
C Ground Clearance . . . . . . . . . . . . . . . . . . . . . . . 17.7 in. (450 mm) 17.7 in. (450 mm)
D Length from Centerline to Front Axle. . . . . . . . . 4 ft. 9 in. (1.45 m) 4 ft. 9 in. (1.45 m)
E Wheelbase . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ft. 8 in. (2.94 m) 9 ft. 6 in. (2.90 m)
F Dump Clearance . . . . . . . . . . . . . . . . . . . . . . . . (see page 23) (see page 24)
G Height to Hinge Pin, Fully Raised. . . . . . . . . . . . 12 ft. 7 in. (3.84 m) 13 ft. 9 in. (4.19 m)
H Dump Reach . . . . . . . . . . . . . . . . . . . . . . . . . . . ▲▲ (see page 23) ▲▲ (see page 24)
I Maximum Digging Depth. . . . . . . . . . . . . . . . . . 3.25 in. (83 mm) 6.5 in. (165 mm)
J Overall Length. . . . . . . . . . . . . . . . . . . . . . . . . . ▲▲▲ (see page 23) ▲▲▲ (see page 24)
K Maximum Rollback at Ground Level . . . . . . . . . 41 deg. 41 deg.
L Maximum Rollback, Boom Fully Raised. . . . . . . 55 deg. 55 deg.
M Maximum Bucket Angle, Fully Raised . . . . . . . . 50 deg. 50 deg.
A
B
C
J
E
45˚
I
Cab and Canopy
F
G
D
K
L
M
H