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Case 680 CK Backhoe Loader
The
Case 680CK is a Construction King series backhoe loader. This model was
manufactured from 1966 to 1968. The Case 680 CK is equipped with two types of
engines: a 267 cu.in (4.4 L) Case 267D four-cylinder liquid-cooled diesel engine
with a max power of 71 hp (53 kW), or 251 cu.in (4.1 L) Case 251G four-cylinder
liquid-cooled gasoline engine with a max power of 71 hp (53 kW).
The Power Shuttle transmission consists of a hydraulic clutch, gearbox
with 4 forward and 4 reverse gears, and single-stage torque converter.
The maximum forward speed - 17 mph (27.2 kph), maximum reverse speed -
21.7 mph (34.1 kph).
The open center hydraulic system includes a direct drive pump with a
rated fluid flow of 27 gal/min (102.5 l/min). The hydraulic pressure is
134 bar (1950 psi). The Case 680CK backhoe loader was equipped with
11.0Lx16 or 8.25x15 front tires and 14.9x24 or 16.9x24 rear tires. The
wheelbase is 80.5 in (2040 mm).
The front end loader has a lifting capacity (at pivot pin) of 5000 lbs
(2270 kg) to 123.5" (3130 mm) full height, and breakout force of 8200
lbs (3725 kg). The bucket dump clearance is 97" (2455 mm) at maximum
dump angle of 45 degrees. The raising time is 6 sec from ground level to
maximum height, and bucket dump time is 2.1 sec. The loader is
compatible with 82" (2070 mm) or 92" (2325 mm) buckets.
The backhoe work ranges consist of a bucket digging force of 11440 lbs
(5200 kg), digging depth at max value of 192" (4855 mm), and reach from
swing pivot of 228" (5770 mm) at ground level. The backhoe is compatible
with 12" (305 mm), 16" (405 mm), 18" (455 mm), 24" (605 mm), 30" (760
mm), or 36" (910 mm) buckets.
| Engine Model |
Case 267D |
| Engine Type |
4-Stroke, 4-cylinder liquid-cooled diesel |
| Number of Cylinders |
4 |
| Displacement, cu in (L) |
267 (4.40) |
| Engine Bore, in (mm) |
4.13 (105.0) |
| Engine Stroke, in (mm) |
5.00 (127.0) |
| Aspiration |
Naturally aspirated |
| Rated Engine Power, hp (kW) |
71.0 (53.0) |
| Rated Engine Speed, rpm |
2000 |
| Maximum Torque, Nm (ft-lb) |
278 (205) |
| Torque Speed, rpm |
1300 |
| Compression Ratio |
15.0:1 |
| Firing Order |
1-3-4-2 |
| Fuel System |
Injection pump |
| Governor Type |
Mechanical, flyweight |
| Lubricating System Type |
Positive pressure |
| Cooling System Type |
Pressurized |
| Air Cleaner |
Dry type |
| Oil Filter |
Full flow type |
| Fuel Tank Capacity, gal (L) |
28.0 (106.0) |
| Electrical System Rating, Volts |
12 |
| Charging System |
Alternator |
| Alternator Rating, Amps |
55 |
| Engine Model |
Case 251G |
| Engine Type |
4-Stroke, 4-cylinder liquid-cooled diesel |
| Number of Cylinders |
4 |
| Displacement, cu in (L) |
251 (4.12) |
| Engine Bore, in (mm) |
4.00 (102.0) |
| Engine Stroke, in (mm) |
5.00 (127.0) |
| Rated Engine Power, hp (kW) |
71.0 (53.0) |
| Rated Engine Speed, rpm |
2000 |
| Maximum Torque, Nm (ft-lb) |
274 (203) |
| Torque Speed, rpm |
1300 |
| Compression Ratio |
7.5:1 |
| Firing Order |
1-3-4-2 |
| Fuel System |
Up-draft carburetor |
| Ignition Type |
Coil and distributor |
| Governor Type |
Mechanical, flyweight |
| Lubricating System Type |
Positive pressure |
| Cooling System Type |
Pressurized |
| Air Cleaner |
Dry type |
| Oil Filter |
Full flow type |
| Fuel Tank Capacity, gal (L) |
28.0 (106.0) |
| Electrical System Rating, Volts |
12 |
| Transmission Type |
Power Shuttle |
| Gearbox Type |
4F/4R, sliding gear |
| Number of Forward Gears |
4 |
| Number of Reverse Gears |
4 |
| Torque Converter Type |
Single stage |
| Torque Converter Ratio |
2.42:1 |
| Clutch Type |
Hydraulic |
| Maximum Forward Speed, mph (kph) |
17.0 (27.2) |
| Maximum Reverse Speed, mph (kph) |
21.7 (34.1) |
| Drive Wheels |
2WD 4x2 |
| Steering Configuration |
Front steer |
| Steering System |
Hydrostatic power |
| Brakes Type |
Hydraulic disc |
| Front Tire Size (Std) |
11.0Lx16 |
| Rear Tire Size (Std) |
14.9x24 |
| Front Tire Size (Opt) |
8.25x15 |
| Rear Tire Size (Opt) |
16.9x24 |
| Front Tread, in (mm) |
70.8 (1790) |
| Rear Tread, in (mm) |
66.3 (1675) |
| Hydraulic System Type |
Open Center |
| Hydraulic Pump Type |
Direct drive, vane |
| Implement Pump Flow, gpm (Lpm) |
27.0 (102.5) |
| Hydraulic Pressure, Bar (psi) |
134 (1950) |
| Hydraulic Fluid Capacity, gal (L) |
17.5 (66.2) |
| Number of Standard Remote Valves |
2/4 |
| Wheelbase, in (mm) |
80.5 (2040) |
| Length (with Attachments), in (mm) |
273 (6905) |
| Height (Steering Wheel), in (mm) |
79 (2000) |
| Height (Exhaust), in (mm) |
95.7 (2430) |
| Overall Width (with Attachments), in (mm) |
81.8 (2070) |
| Ground Clearance, in (mm) |
13.3 (330) |
| Shipping Weight (Diesel), lb (kg) |
12800 (5820) |
| Shipping Weight (Gas), lb (kg) |
12700 (5770) |
| Maximum Lift Height (to pin), in (mm) |
123.5 (3130) |
| Clearance, Dumped Bucket, in (mm) |
97 (2455) |
| Dump Reach, in (mm) |
34 (860) |
| Dump Angle, deg |
45 |
| Rollback Angle, deg |
39 |
| Reach At Ground, in (mm) |
68.8 (1740) |
| Breakout Force (at pin), lb (kg) |
8200 (3725) |
| Lift to Full Height (at pin), lb (kg) |
5000 (2270) |
| Bucket Width (Std), in (mm) |
82 (2070) |
| Bucket Width (Opt), in (mm) |
92 (2325) |
| Lift Cylinder Size, in (mm) |
4.0x25.5 (102x645) |
| Bucket Cylinder Size, in (mm) |
2.5x10.8 (64x275) |
| Raising Time to Full Height, second |
6.0 |
| Bucket Dumping Time, second |
2.1 |
| Lowering Time, second |
3.2 |
| Max Digging Depth (Retracted), in (mm) |
168 (4250) |
| Max Digging Depth (Extended), in (mm) |
192 (4855) |
| Reach from Swing Pivot (Retracted), in (mm) |
205.5 (5200) |
| Reach from Swing Pivot (Extended), in (mm) |
228 (5770) |
| Loading Height (Retracted), in (mm) |
122 (3500) |
| Loading Height (Extended), in (mm) |
153 (3880) |
| Swing Arc, deg |
190 |
| Bucket Rotation, deg |
157 |
| Loading Reach (Retracted), in (mm) |
85 (2150) |
| Loading Reach (Extended), in (mm) |
108.5 (2745) |
| Digging Force, lb (kg) |
11440 (5200) |
| Bucket Width, in (mm) |
12 (305) |
| Bucket Width, in (mm) |
16 (405) |
| Bucket Width, in (mm) |
18 (455) |
| Bucket Width, in (mm) |
24 (605) |
| Bucket Width, in (mm) |
30 (760) |
| Bucket Width, in (mm) |
36 (910) |
| Boom Cylinder Size, in (mm) |
4.5x39.8 (114x1007) |
| Crowd Cylinder Size, in (mm) |
4.5x35.3 (114x894) |
| Bucket Cylinder Size, in (mm) |
4.0x27.3 (102x690) |
| Swing Cylinder Size, in (mm) |
4.0x11 (102x280) |
| Stabilizer Cylinder Size, in (mm) |
3.5x16.4 (88x415) |
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| Backhoe Loaders Technical Specifications |
