Loader/Backhoe

590 Super L
ENGINE HYDRAULIC SYSTEM STEERING
Model.............................. Case 4T-390 Front mounted, positive displacement, Hydrostatic power steering with
Type .............. 4-stroke, turbocharged gear-type tandem. Heavy-duty oil cool- on-demand priority flow from the main
Cylinders .......................................... 4 er. hydraulic pump. 2350 psi operating
Fuel injection ........................... Direct pressure. One, double-acting steering
LOADER HYDRAULIC PUMP CAPACITY
Bore/Stroke.................... 4.02" x 4.72" cylinder with a stop-to-stop turning
30 gpm @ 2200 rpm @ 3000 psi
Displacement .......................... 239 in3 ratio of 2.75 turns.
LOADER CONTROL VALVE
Horsepower TIRE SIZE
Gross........................ 95 @ 2200 rpm 2 or 3-spool sectional valve with single Front
Net ........................... 88 @ 2200 rpm lever control for lift, tilt and auxiliary
2WD .............. 14.5/.75 x 16.1, 10PR
Maximum torque hydraulics. Positive hold “float” and
4WD ....................... 14 x 17.5, 10PR
“return-to-dig”.
Gross.............. 281 lb·ft @ 1400 rpm Rear ........................... 21L x 24, 10PR
Net ................. 260 lb·ft @ 1400 rpm BACKHOE HYDRAULIC PUMP CAPACITY
CURB CLEARANCE CIRCLE
41 gpm @ 2200 rpm @ 3000 psi
2 WD
DRIVELINE 47 gpm @ 2350 rpm @ 100 psi w/o brakes................................ 24'8"
Fully synchronized 4-speed forward BACKHOE CONTROL VALVE w/brakes .................................. 21'2"
reverse shuttle transmission with 6 or 7-spool, sectional, open-center, 4 WD w/axle disengaged
hydraulically actuated clutches and parallel circuits with regeneration for w/o brakes................................ 25'2"
clutch disconnect buttons on the boom, dipperstick, bucket, swing, two w/brakes ................................ 21'10"
transmission shifter and loader control stabilizers and Extendahoe dipper- 4 WD w/axle engaged
lever. Electronically activated stick. Load-sensing priority swing w/o brakes................................ 28'2"
forward/reverse shuttle shift and 4WD system. w/brakes .................................. 22'0"
engagement with optional mechanical
CONTROL VALVE MAIN RELIEF PRESSURE FRONT AXLE OSCILLATION
front wheel drive. 4WD activation
3000 + 100 - 0 psi 2 WD & 4 WD 22° total (11° each side)
on-the-go. Maintenance-free, self-
adjusting, inboard mounted, wet disc FILTRATION
brakes are hydraulically actuated. 7-micron, full flow replaceable car- ELECTRICAL SYSTEM
tridge on return line. Condition
TRAVEL SPEEDS (MPH) Voltage ...... 12 Volts, negative ground
1st 2nd 3rd 4th SERVICE CAPACITIES Alternator ............... 12 Volts, 65 amp
Forward ...... 3.8 ...... 6.8 ..... 13.2 .... 26.3 Battery .................. Maintenance-free
Reverse....... 4.6 ...... 8.2 ..... 15.8 .... 31.6 Fuel tank ............................... 31.4 gal 685 cold-cranking amps
NOTE: Engine at 2351 r/min and 21L x 24 Hydraulic reservoir............... 13.9 gal @ 0° F
rear tires. Total hydraulic system ...... 33.0 gal
Transmission OPERATING WEIGHT
OPERATOR ENVIRONMENT 2WD Total system................ 19.5 qt
Base Unit: 4WD, loader, 93" 4-in-1
4WD Total system................ 22.0 qt
Optional ROPS canopy or 2-door loader bucket, backhoe, Extendahoe
4WD Front axle
pressurized cab with heater and dipperstick, 500 lb counterweight,
defroster – A/C optional. Optional
Differential............................. 6.9 qt
24" heavy-duty trenching bucket, Cab,
deluxe cab interior. Optional non- Planetaries (each) .................. 1.1 qt 14 x 17.5 front tires, 21L x 24 rear
suspension or deluxe suspension seats. Rear axle tires, dual batteries, full fuel tank and
Hand and foot throttles. Key start. Differential........................... 14.8 qt 175 lb operator ..................... 15,414 lb
Beverage holders. Storage box. Planetaries (each) .................. 2.1 qt
Engine oil w/filter ................... 11.6 qt Deduct:
GAUGES AND WARNING LIGHTS ROPS canopy .......................... -477 lb
Cooling system
Converter oil temperature – Engine 2WD......................................... -286 lb
w/heater................................ 17.4 qt
coolant temperature – Fuel – Rear axle Standard loader bucket.......... -712 lb
w/o heater............................. 16.7 qt
oil temperature – Tachometer/hourme- Standard dipperstick* ............ -950 lb
ter – Voltmeter – Alternator – Engine
NOTE: *Deduction includes 500 lb Extendahoe
oil counterweight.
pressure – Hydraulic system filter –
Air cleaner – Parking brake

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LOADER LOADER DIMENSIONS
Single-lever control for lift and tilt with GENERAL PURPOSE 4-IN-1®
positive hold float and return-to-dig. Overall operating height .................................................. 14'2"......................... 14'6"
Automatic self-leveling throughout the Bucket rollback @ groundline ............................................. 40° ........................... 40°
lift cycle. In-line, reverse linkage with Dump angle @ full height.................................................... 45° ........................... 45°
dual parallel dump cylinders. Optional Digging depth below grade –
front-end auxiliary hydraulics with Bucket flat ...................................................................... 3.8" .......................... 4.4"
combined single-lever control for lift, Clam open (dozing).......................................................... NA .......................... 1.8"
tilt and auxiliary. Clutch disconnect Dump clearance @ full height, 45° dump –
button on the loader control disengages Bucket ............................................................................. 9'0"......................... 9'10"
the transmission for fast loading cycles. Clam open ........................................................................ NA........................... 9'1"
Optional General Purpose or 4-in-1 Dump reach @ full height, 45° dump –
buckets available. Both buckets are 93" Bucket ........................................................................... 25.9" ........................ 23.7"
wide with 1.25 yd3 capacity and feature Clam open ........................................................................ NA ........................ 10.2"
bolt-on cutting edge. Reach from front axle centerline,
bucket on ground .......................................................... 75.2" ........................ 72.7"
Lift capacity to full height........................................... 7,000 lb.................... 6,200 lb
LOADER BUCKET SIZES AND WEIGHTS Height to bucket hinge pin raised ................................... 11'5"......................... 11'5"
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d Bucket cutting edge width .................................................. 93" ........................... 93"
93" 993 lb 1.1 yd3 1.25 yd3 Maximum grading angle................................................... 116° ......................... 116°
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93" 1,705 lb 0.98 yd3 1.2 yd3 Raising time to full height ............................................ 5.6 sec...................... 5.6 sec
Bucket dumping time .................................................... 0.9 sec...................... 0.9 sec
Lowering time, power down .......................................... 2.5 sec...................... 2.5 sec
BACKHOE Lowering time, return-to-dig......................................... 3.2 sec...................... 3.2 sec
Over-center backhoe reduces transport NOTE: Specifications taken with 4WD and 19.5L x 24 rear tires.
length and increases bucket clearance
with a higher angle of departure. Open-
center hydraulics at 41 gpm for
BACKHOE LIFT CAPACITIES
responsive, precision control. Variable HEIGHT ABOVE & BELOW
flow priority swing circuit provides a GROUND LEVEL EXTENDAHOE®
constant, smooth swing speed for out- STANDARD BACKHOE RETRACTED EXTENDED
standing multi-function control. BOOM LIFT
194,200 in·lb swing torque to swing +18'................................................................................................................ 1,940 lb
heavy loads uphill or push dirt when +16'................................................................................................................ 2,200 lb
backfilling. 12" maximum width for +14' .................................... 3,430 lb ................................ 3,130 lb .............. 2,260 lb
excellent visibility. Two or three lever +12' .................................... 3,550 lb ................................ 3,240 lb .............. 2,290 lb
control pattern. Foot swing with three +10' .................................... 3,540 lb ................................ 3,250 lb .............. 2,230 lb
lever pattern. Optional Extendahoe® +8' ...................................... 3,500 lb ................................ 3,230 lb .............. 2,300 lb
and variable-flow auxiliary hydraulics. +6' ...................................... 3,460 lb ................................ 3,140 lb .............. 2,290 lb
Ground Level..................... 3,270 lb ................................ 2,980 lb .............. 2,240 lb
-6' ....................................... 3,100 lb ................................ 2,780 lb .............. 2,150 lb
BACKHOE BUCKET SIZES AND WEIGHTS -8' ....................................... 3,150 lb ................................ 2,760 lb .............. 2,100 lb
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d -12' ..................................... 3,420 lb ................................ 3,050 lb .............. 2,170 lb
12" ................... 311 lb............ 2.9 ft3
-14' ................................................................................................................ 2,334 lb
16" ................... 346 lb............ 3.6 ft3
-16' ................................................................................................................ 2,780 lb
18" ................... 359 lb............ 4.3 ft3
DIPPER LIFT
24" ................... 429 lb............ 6.4 ft3
+16'................................................................................................................ 2,700 lb
30" ................... 496 lb............ 8.6 ft3
+14' .................................... 4,850 lb ................................ 4,600 lb .............. 2,910 lb
36" ................... 571 lb........... 10.8 ft3
+12' .................................... 5,220 lb ................................ 5,000 lb .............. 3,050 lb
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d +6' ...................................... 5,530 lb ................................ 5,390 lb .............. 3,140 lb
24" ................... 450 lb............ 8.5 ft3
NOTE: Stated figures apply straight to the rear of prime mover. Equipped with 24" general purpose
30" ................... 517 lb........... 10.6 ft3 trenching bucket and links. For heavy-duty universal bucket and coupler, deduct 150 lb.

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BACKHOE OPERATIONAL DATA
EXTENDAHOE®
STANDARD BACKHOE RETRACTED EXTENDED
Digging depth
24" flat bottom ............................................................... 15'6" ....................................................... 15'6" ................................ 19'6"
Maximum....................................................................... 15'7" ....................................................... 15'7" ................................ 19'7"
Overall reach from
Rear axle centerline ...................................................... 23'3" ....................................................... 23'3" ................................ 27'2"
Swing pivot .................................................................... 19'8" ....................................................... 19'8" ................................ 23'7"
Loading height .................................................................. 11'5" ....................................................... 11'5" ................................ 14'1"
Loading reach ..................................................................... 9'6" ......................................................... 9’6" .............................. 12'11"
Swing arc ........................................................................... 180°........................................................ 180° ................................. 180°
Bucket rotation
#1 position ...................................................................... 180°........................................................ 180° ................................. 180°
#2 position ...................................................................... 160°........................................................ 160° ................................. 160°
Stabilizer spread
Operating position......................................................... 11'1" ....................................................... 11'1" ................................ 11'1"
Digging force
Bucket cylinder ..................................................... 13,126 lbf ............................................... 12,859 lbf ........................ 12,859 lbf
Dipper cylinder........................................................ 8,449 lbf ................................................. 7,946 lbf .......................... 5,720 lbf
Leveling angle
(maximum slope that backhoe
will make vertical cut ...................................................... 12°.......................................................... 12° ................................... 12°

DIMENSIONS
EXTENDAHOE®
STANDARD BACKHOE RETRACTED EXTENDED
Overall length – transport
General purpose bucket ................................................ 23'6" ....................................................... 23'6" .................................. NA
4-in-1 bucket .................................................................. 23'4" ....................................................... 23'4" ................................... NA
Overall height, maximum ................................................ 15'7" ..................................................... 20'11" .............................. 24'10"
Transport height .............................................................. 11'6" ..................................................... 11'11" ................................... NA
Overall width — over tires................................................. 7'8" ......................................................... 7'8" .................................. 7'8"
Angle of departure............................................................... 20°.......................................................... 20° ................................... 20°
Height –
To top of canopy ............................................................... 8'9" ......................................................... 8'9" ................................... NA
To top of cab ................................................................... 8'11" ....................................................... 8'11" ................................... NA
To top of exhaust stack.................................................... 8'8" ......................................................... 8'8" ................................... NA
Ground clearance at
backhoe frame ............................................................... 12.9" ....................................................... 12.9" ................................... NA
Front wheel tread –
2WD ............................................................................... 68.5" ....................................................... 68.5" ................................... NA
4WD ............................................................................... 67.0" ....................................................... 67.0" ................................... NA
Rear wheel tread .............................................................. 63.8" ....................................................... 63.8" ................................... NA
Wheelbase –
2WD .................................................................................. 84" .......................................................... 84" ................................... NA
4WD ............................................................................... 84.5" ....................................................... 84.5" ................................... NA
NOTE: Specifications taken with 14.5 x 16.1 front tires (except that data marked 4WD is taken with 14 x 17.5 front tires), 21L x 24 rear tires, Cab, 15' backhoe
with
24" heavy-duty trenching bucket, loader with 93" general purpose bucket and standard equipment unless otherwise specified.

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CASE CORPORATION
700 STATE STREET
RACINE, WI 53404 U.S.A. CASE is a Registered Trademark of CASE CORPORATION
© 1995 CASE CORPORATION IMPORTANT: Case Corporation reserves the
CASE CANADA CORPORATION Printed in U.S.A. right to change these specifications without
3350 SOUTH SERVICE ROAD notice and without incurring any obligation
BURLINGTON, ON L7N 3M6 CANADA 59900 S
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