Machine models

CASE 680K, 680L and 780D: refill boundaries, lift charts and component identity

680L refill quantities depend on what is serviced

The 680L operator manual separates a hydraulic-reservoir refill with a filter change from a refill without one. Those are service quantities with different boundaries. Its cooling-system entries also distinguish machines with and without a heater.

A single capacity copied into every service estimate would discard equipment and procedure details that Case printed beside the figures.

Axle entries require similar care. The rear differential has its own quantity, and the planetary quantity is stated for each side. The front-drive axle is listed separately from the two-wheel-drive arrangement.

Establish which axle is fitted and which compartment was drained before applying a capacity to it.

Extendahoe reach does not establish lifting ability

Case supplies different backhoe lift charts for the standard linkage and for Extendahoe with its dipper retracted or extended. The chart notes also distinguish the complete swing arc and tipping-limited points. The longest digging-reach number cannot replace the lift chart for a suspended load.

Match dipper position, radius and the chart's limiting condition.

Loader tables distinguish general-purpose and four-in-one buckets. Their weight and discharge geometry differ, so the bucket arrangement belongs in the comparison. The controls contents also separates hand-swing from foot-swing backhoe layouts.

Check the fitted controls before arranging an operator demonstration.

Source: original Case680L operator manual, capacities, bucket tables and lift-chart notes.

The engine and machine have separate identities

FP Diesel's October 2011 Case-engine catalogue includes 680K and 680L applications, but it asks for information from the actual engine plate before parts selection. Its instructions can require piston identification, casting details or a Cummins CPL number in addition to displacement. A shared engine-family listing is therefore a starting point for identification, not proof that every overhaul part fits every machine in this comparison.

The catalogue also distinguishes direct from indirect injection and sorts naturally aspirated and turbocharged applications separately. Determine the fitted engine arrangement before ordering. An aftermarket engine-component catalogue does not establish the loader's hydraulic setting, transport mass or backhoe lift capacity; use the corresponding machine document for those questions.

Case's operator record sheet provides spaces for the machine PIN, engine, axle and attachment identities. ConEquip's serial-location guide adds a useful warning: the ROPS plate inside the cab is not the machine VIN plate. Its older-machine locations include the frame below the left door or the area beneath the left loader lift arm.

Record the machine and engine markings together when requesting parts information, especially if the machine has received a replacement engine or a different attachment.

Sources: FP Diesel CA0095 Case-engine catalogue; ConEquip Case serial-location guide.
Earlier reference entries and original manufacturer corrections
Model and fieldEarlier entryManufacturer figure and scopeSource
680L Rear Axle Fluid Capacity0.7 gal18 US qt (17 L), REAR DIFFERENTIAL; each planetary separately2.5USqt(2.4L), original680L operator manualP28Original document
680L Front Axle Fluid Capacity0.7 gal17 US qt (16 L), FOUR-WHEEL-DRIVE FRONT DIFFERENTIAL; planetary each2.5USqt(2.4L), manualP28Original document
680L Hydraulic System Fluid Capacity14.3 gal19.5 US gal (73.8 L), HYDRAULIC RESERVOIR REFILL WITH FILTER CHANGE; without filter18.9USgal(71.5L), manualP28Original document
680L Oil System Fluid Capacity3.8 gal16 US qt (15.1 L), ENGINE OIL WITH FILTER CHANGE, original680L operator manualP28Original document
Entries in this reference
Listing-entry count
3
Short answer

CASE 680K, 680L and 780D: refill boundaries, lift charts and component identity: backhoe loaders.

Selected configuration figures
ConfigurationDocumented field and quantity
680K
Gross Power
101 hp
Pump Flow Capacity
44.4 gpm
680L
Gross Power
101 hp
Operating Weight 2wd
17,218 lb
780D
Gross Power
124 hp
Pump Flow Capacity
31.5 gpm
680K, 680L, and 780D specification matrix — Listing labels reported by the source
Publisher nameSource guideListing-entry countLabels named by the source
CASE680K, 680L, and 780D3680K, 680L, and 780D
Backhoe
Specification680K680L780D
Load Height - Std11.19 ft11.26 ft12.67 ft
Reach From Swivel - Std19.79 ft19.96 ft21.92 ft
Dig Depth - Std16.47 ft16.5 ft18.08 ft
Dig Depth - Ext21.69 ft20.6 ft21.99 ft
Load Height - Ext13.92 ft13.11 ft14.47 ft
Bucket Dig Force - Ext11,812 lb11,812 lb13,741 lb
Bucket Dig Force - Std11,289 lb11,289 lb13,640 lb
Reach From Swivel - Ext23.99 ft24 ft25.5 ft
Specification680L
Reach At Load Height - Std8.78 ft
Reach At Load Height - Ext11.11 ft
Dimensions and weight
Specification680K680L780D
Transport Length22.97 ft23 ft24.64 ft
Transport Width7.52 ft8 ft8.08 ft
Transport Height11.68 ft14.7 ft13.13 ft
Wheelbase7.22 ft7.26 ft7.22 ft
Height To Top Of Suspended Cab9.59 ft9.7 ft9.68 ft
Rear Tread Range66.93 in6.65 in71.26 in
Specification680K680L
Front Wheel Tread Width71.66 in5.12 in
Specification680L780D
Ground Clearance1.17 ft1.71 ft
Specification780D
Front Tread Range78.35 in
Loader
Specification680K680L780D
Clearance At Max Dump Height9.42 ft9.5 ft8.83 ft
Reach At Max Dump Height2.56 ft4.17 ft2.92 ft
Lift Capacity At Full Height5,900 lb7,200 lb7,500 lb
Bucket Width86 in96 in95.67 in
Bucket Breakout Force10,020 lb10,020 lb12,300 lb
Specification680L
Dig Depth2.52 in
Bucket Capacity1.5 yd3
Engine
Specification680K680L780D
Engine MakeJ.I. CaseCaseJ.I. Case
Gross Power101 hp101 hp124 hp
Net Power90 hp90 hp112 hp
Power Measured @2,200 rpm2,200 rpm2,200 rpm
Torque Measured @1,200 rpm1,200 rpm1,200 rpm
Net Max Torque260 lb-ft273 lb-ft370 lb-ft
Displacement360.1 cu in359 cu in360.1 cu in
Bore4.1 in4.1 in4.1 in
Stroke4.8 in4.8 in4.8 in
Specification680L780D
Number Of Cylinders66
Engine Model6-5906T-590
Operational
Specification680K780D
Max Weight14,900 lb23,264 lb
Specification680K680L780D
Hydraulic System Fluid Capacity13.7 gal19.5 US gal (73.8 L), HYDRAULIC RESERVOIR REFILL WITH FILTER CHANGE; without filter18.9USgal(71.5L), manualP2814.2 gal
Oil System Fluid Capacity3.1 gal16 US qt (15.1 L), ENGINE OIL WITH FILTER CHANGE, original680L operator manualP283.1 gal
Cooling System Fluid Capacity6.8 gal6.8 gal6.8 gal
Tire Size Front - 2wd / 4wd12.5Lx1611 * 1614.00x17.5
Rear Tires Size 2wd/4wd16.9x2419.5L* 2421Lx24
Operating Voltage12 V12 V12 V
Alternator Supplied Amperage40 amps65 amps65 amps
Specification680L
Operating Weight 2wd17,218 lb
Operating Weight 4wd17,922 lb
Transmission Fluid Capacity4 gal
Manufacturer Four Wheel Drive Front Differential Capacity17 US qt (16 L), FOUR-WHEEL-DRIVE FRONT DIFFERENTIAL; planetary each2.5USqt(2.4L), manualP28
Rear Axle Differential Fluid Capacity18 US qt (17 L), REAR DIFFERENTIAL; each planetary separately2.5USqt(2.4L), original680L operator manualP28
Specification680L780D
Fuel Capacity43.1 gal43 gal
Specification780D
Axle Load - Front22,250 lb
Axle Load - Rear26,977 lb
Transmission and speeds
Specification680K680L780D
Transmission TypePower shiftPower shiftPower shift
Number Of Forward Gears333
Number Of Reverse Gears332
Max Speed - Forward19.4 mph17.5 mph19.5 mph
Max Speed Reverse19.4 mph17.5 mph7.5 mph
Hydraulic
Specification680K680L780D
Pump Flow Capacity44.4 gpm18.7 gpm31.5 gpm
Relief Valve Pressure2,000 psi2,000 psi1,750 psi
Specification680L780D
Pump TypeEngine mounted , positive displacement , gear type pumpOpen center
Variants — Source comparison annotation
Source guideDiffering-field count reported
680K, 680L, and 780D53
Ratios
Figure680K680L780D
Engine horsepower per 1,000 lb of weight6.05.24.8
Pump flow per engine horsepower0.49 gpm0.21 gpm0.28 gpm
Reference calculations using the earlier specification entries
Figure680L780D
Fuel tank per engine horsepower0.48 gal0.38 gal

680K, 680L, and 780D: owner reports

Sources: 3 forum discussions about the Case 680 backhoe loaders (680E, 680H, 680L); heavyequipmentforums.com.Sources: 3 forum discussions about the Case 780 backhoe loaders; heavyequipmentforums.com.
680K, 680L, and 780D: forum references — Forum-title search
Forum indexEquipment class queriedNames in the searchMatching titles
Heavy Equipment Forumsbackhoe loaderCASE and the 680K, 680L, 780D20
Topics named by those titles
Title topicTitles
hydraulics3
starting and cranking2
Topic in the titleThreadsShare of matching threads
hydraulics315%
starting and cranking210%
680K, 680L, and 780D: dated market and recall observations — Dated listing search
DateListing indexEquipment classNames queriedResult
2026-09-24MachineryTrader (machinerytrader.com)backhoe loader680K, 680L, 780DNo matching offers in this snapshot
Dated CPSC search
DateDatabaseNames queriedResult
2026-09-24U.S. Consumer Product Safety CommissionCASE; 680K, 680L, 780DNo matching recall in the stated search

Sources for this page

Evidence classDocument, classification and recorded date
Reference site
  • Reference site: CASE 680K — RitchieSpecs. Observed 2026-09-24.
Reference site
  • Reference site: CASE 680L — RitchieSpecs. Observed 2026-09-24.
Reference site
  • Reference site: CASE 780D — RitchieSpecs. Observed 2026-09-24.
Forum threads
Forum threads
Federal agency data

CASE 680K, 680L and 780D: refill boundaries, lift charts and component identity: Configuration records

680K
SpecificationSource figure
Backhoe
Load Height - Std11.19 ft
Reach From Swivel - Std19.79 ft
Dig Depth - Std16.47 ft
Load Height - Ext13.92 ft
Bucket Dig Force - Ext11,812 lb
Bucket Dig Force - Std11,289 lb
Dig Depth - Ext21.69 ft
Reach From Swivel - Ext23.99 ft
Dimensions and weight
Transport Length22.97 ft
Transport Width7.52 ft
Transport Height11.68 ft
Wheelbase7.22 ft
Height To Top Of Suspended Cab9.59 ft
Front Wheel Tread Width71.66 in
Rear Tread Range66.93 in
Loader
Clearance At Max Dump Height9.42 ft
Reach At Max Dump Height2.56 ft
Bucket Breakout Force10,020 lb
Bucket Width86 in
Lift Capacity At Full Height5,900 lb
Engine
Gross Power101 hp
Net Power90 hp
Power Measured @2,200 rpm
Torque Measured @1,200 rpm
Net Max Torque260 lb-ft
Displacement360.1 cu in
Engine MakeJ.I. Case
Bore4.1 in
Stroke4.8 in
Operational
Max Weight14,900 lb
Hydraulic System Fluid Capacity13.7 gal
Oil System Fluid Capacity3.1 gal
Cooling System Fluid Capacity6.8 gal
Tire Size Front - 2wd / 4wd12.5Lx16
Rear Tires Size 2wd/4wd16.9x24
Operating Voltage12 V
Alternator Supplied Amperage40 amps
Transmission and speeds
Transmission TypePower shift
Number Of Forward Gears3
Number Of Reverse Gears3
Max Speed - Forward19.4 mph
Max Speed Reverse19.4 mph
Hydraulic
Pump Flow Capacity44.4 gpm
Relief Valve Pressure2,000 psi

Source

680L
SpecificationSource figure
Backhoe
Load Height - Std11.26 ft
Reach From Swivel - Std19.96 ft
Dig Depth - Std16.5 ft
Reach At Load Height - Std8.78 ft
Load Height - Ext13.11 ft
Bucket Dig Force - Ext11,812 lb
Bucket Dig Force - Std11,289 lb
Dig Depth - Ext20.6 ft
Reach At Load Height - Ext11.11 ft
Reach From Swivel - Ext24 ft
Dimensions and weight
Transport Length23 ft
Transport Width8 ft
Transport Height14.7 ft
Wheelbase7.26 ft
Ground Clearance1.17 ft
Height To Top Of Suspended Cab9.7 ft
Front Wheel Tread Width5.12 in
Rear Tread Range6.65 in
Loader
Clearance At Max Dump Height9.5 ft
Reach At Max Dump Height4.17 ft
Dig Depth2.52 in
Bucket Breakout Force10,020 lb
Bucket Width96 in
Bucket Capacity1.5 yd3
Lift Capacity At Full Height7,200 lb
Engine
Number Of Cylinders6
Engine Model6-590
Gross Power101 hp
Net Power90 hp
Power Measured @2,200 rpm
Torque Measured @1,200 rpm
Net Max Torque273 lb-ft
Displacement359 cu in
Engine MakeCase
Bore4.1 in
Stroke4.8 in
Operational
Operating Weight 2wd17,218 lb
Fuel Capacity43.1 gal
Cooling System Fluid Capacity6.8 gal
Transmission Fluid Capacity4 gal
Tire Size Front - 2wd / 4wd11 * 16
Rear Tires Size 2wd/4wd19.5L* 24
Operating Voltage12 V
Alternator Supplied Amperage65 amps
Operating Weight 4wd17,922 lb
Transmission and speeds
Transmission TypePower shift
Number Of Forward Gears3
Number Of Reverse Gears3
Max Speed - Forward17.5 mph
Max Speed Reverse17.5 mph
Hydraulic
Pump TypeEngine mounted , positive displacement , gear type pump
Pump Flow Capacity18.7 gpm
Relief Valve Pressure2,000 psi
Additional specifications
Manufacturer Hydraulic Reservoir Refill Capacity19.5 US gal (73.8 L), HYDRAULIC RESERVOIR REFILL WITH FILTER CHANGE; without filter18.9USgal(71.5L), manualP28 [source]
Engine Oil With Filter Capacity16 US qt (15.1 L), ENGINE OIL WITH FILTER CHANGE, original680L operator manualP28 [source]
Manufacturer Four Wheel Drive Front Differential Capacity17 US qt (16 L), FOUR-WHEEL-DRIVE FRONT DIFFERENTIAL; planetary each2.5USqt(2.4L), manualP28 [source]
Rear Axle Differential Fluid Capacity18 US qt (17 L), REAR DIFFERENTIAL; each planetary separately2.5USqt(2.4L), original680L operator manualP28 [source]
Operator Manual Heater And Lift Chart ScopeCoolingwithoutheater25USqt23.7L;withheater27USqt25.6L. Separate standard-backhoe andExtendahoe retracted/extendedliftcharts; tippinglimits/full-swingarcnotes retained. [source]
Original Component Identity RecordsOperator record distinguishesmachinePIN,engine,transaxle,frontdriveaxle,ROPSandattachments; ROPSlabelisnotmachineVIN. Matchcomponentidentitybeforeordering. [source]

Source

780D
SpecificationSource figure
Backhoe
Load Height - Std12.67 ft
Reach From Swivel - Std21.92 ft
Dig Depth - Std18.08 ft
Load Height - Ext14.47 ft
Bucket Dig Force - Ext13,741 lb
Bucket Dig Force - Std13,640 lb
Dig Depth - Ext21.99 ft
Reach From Swivel - Ext25.5 ft
Dimensions and weight
Transport Length24.64 ft
Transport Width8.08 ft
Transport Height13.13 ft
Wheelbase7.22 ft
Ground Clearance1.71 ft
Height To Top Of Suspended Cab9.68 ft
Rear Tread Range71.26 in
Front Tread Range78.35 in
Loader
Clearance At Max Dump Height8.83 ft
Reach At Max Dump Height2.92 ft
Bucket Breakout Force12,300 lb
Bucket Width95.67 in
Lift Capacity At Full Height7,500 lb
Engine
Number Of Cylinders6
Engine Model6T-590
Gross Power124 hp
Net Power112 hp
Power Measured @2,200 rpm
Torque Measured @1,200 rpm
Net Max Torque370 lb-ft
Displacement360.1 cu in
Engine MakeJ.I. Case
Bore4.1 in
Stroke4.8 in
Operational
Fuel Capacity43 gal
Max Weight23,264 lb
Hydraulic System Fluid Capacity14.2 gal
Oil System Fluid Capacity3.1 gal
Cooling System Fluid Capacity6.8 gal
Tire Size Front - 2wd / 4wd14.00x17.5
Rear Tires Size 2wd/4wd21Lx24
Operating Voltage12 V
Alternator Supplied Amperage65 amps
Axle Load - Front22,250 lb
Axle Load - Rear26,977 lb
Transmission and speeds
Transmission TypePower shift
Number Of Forward Gears3
Number Of Reverse Gears2
Max Speed - Forward19.5 mph
Max Speed Reverse7.5 mph
Hydraulic
Pump TypeOpen center
Pump Flow Capacity31.5 gpm
Relief Valve Pressure1,750 psi

Source

Compare CASE 680K, 680L, 780D
Backhoe
Specification680K680L780D
Load Height - Std11.19 ft11.26 ft12.67 ft
Reach From Swivel - Std19.79 ft19.96 ft21.92 ft
Dig Depth - Std16.47 ft16.5 ft18.08 ft
Dig Depth - Ext21.69 ft20.6 ft21.99 ft
Load Height - Ext13.92 ft13.11 ft14.47 ft
Bucket Dig Force - Ext11,812 lb11,812 lb13,741 lb
Bucket Dig Force - Std11,289 lb11,289 lb13,640 lb
Reach From Swivel - Ext23.99 ft24 ft25.5 ft
Dimensions and weight
Specification680K680L780D
Transport Length22.97 ft23 ft24.64 ft
Transport Width7.52 ft8 ft8.08 ft
Transport Height11.68 ft14.7 ft13.13 ft
Wheelbase7.22 ft7.26 ft7.22 ft
Height To Top Of Suspended Cab9.59 ft9.7 ft9.68 ft
Rear Tread Range66.93 in6.65 in71.26 in
Loader
Specification680K680L780D
Clearance At Max Dump Height9.42 ft9.5 ft8.83 ft
Reach At Max Dump Height2.56 ft4.17 ft2.92 ft
Lift Capacity At Full Height5,900 lb7,200 lb7,500 lb
Bucket Width86 in96 in95.67 in
Bucket Breakout Force10,020 lb10,020 lb12,300 lb
Engine
Specification680K680L780D
Engine MakeJ.I. CaseCaseJ.I. Case
Gross Power101 hp101 hp124 hp
Net Power90 hp90 hp112 hp
Power Measured @2,200 rpm2,200 rpm2,200 rpm
Torque Measured @1,200 rpm1,200 rpm1,200 rpm
Net Max Torque260 lb-ft273 lb-ft370 lb-ft
Displacement360.1 cu in359 cu in360.1 cu in
Bore4.1 in4.1 in4.1 in
Stroke4.8 in4.8 in4.8 in
Operational
Specification680K680L780D
Measurement and equipment basis (specified in each cell)13.7 gal19.5 US gal (73.8 L), HYDRAULIC RESERVOIR REFILL WITH FILTER CHANGE; without filter18.9USgal(71.5L), manualP28 [source]14.2 gal
Measurement and equipment basis (specified in each cell)3.1 gal16 US qt (15.1 L), ENGINE OIL WITH FILTER CHANGE, original680L operator manualP28 [source]3.1 gal
Cooling System Fluid Capacity6.8 gal6.8 gal6.8 gal
Tire Size Front - 2wd / 4wd12.5Lx1611 * 1614.00x17.5
Rear Tires Size 2wd/4wd16.9x2419.5L* 2421Lx24
Operating Voltage12 V12 V12 V
Alternator Supplied Amperage40 amps65 amps65 amps
Transmission and speeds
Specification680K680L780D
Transmission TypePower shiftPower shiftPower shift
Number Of Forward Gears333
Number Of Reverse Gears332
Max Speed - Forward19.4 mph17.5 mph19.5 mph
Max Speed Reverse19.4 mph17.5 mph7.5 mph
Hydraulic
Specification680K680L780D
Pump Flow Capacity44.4 gpm18.7 gpm31.5 gpm
Relief Valve Pressure2,000 psi2,000 psi1,750 psi

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