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Funk ModularPump DrivesSelection GuideThe simplest solutionsare also the most reliable

Funk Modular Pump DrivesBuilt stronger and smarterfrom the inside outModular hydraulic pump drivesWhen you look inside a Funk hydraulic pump drive, you are seeing the result of over 50 years of off-highway power transmissionexperience. This knowledge led to advancements including the development of the first modular hydraulic pump drive design.Our modular approach gives you a choice of gear ratios, pump adapters, mounting options, and more. With over 5,000 optioncombinations, we can provide a pump drive that meets your configuration, reliability, and durability needs. Add up all the advantages,and it is easy to see why Funk pump drives are number one.15232674891 Ball bearings include a built-in oil reservoir in theouter race to provide uninterrupted lubrication.4 Cast iron housings are built to withstand hard use intough applications.7 High quality spur gears provide quiet operationand allow the use of ball bearings.2 Viton shaft seals provide long life in hightemperature applications.5 Dedicated pathways provide lubrication to bearingsand splines.8 Wet splines provide a long, trouble-free life.3 Engine housing adapters are available for a varietyof flywheel sizes.6 Internal spline adapters make it quick and easy toconfigure pump drives to a variety of applications.9 Pump adapter plates can be easily changed for usewith different pump sizes.

IntroductionPerfect fitWith more than 5,000 pump drive configurations up to 950 hp(708 kW), we are sure to have the pump drive that meets yourneeds. Our application engineers provide support to help youchoose the best pump drive for your application.High qualityWe use the latest manufacturing technology to ensure wedeliver the highest quality products to you.Pump drive selection procedure.4Service factors.5Clutch capacities.5Series 28000. 6 – 17360 hp* (268 kW) max input power–– 750 lb-ft* (1017 Nm) max input torque–– 1, 2, or 3 pump drives–– A, B, C, or D available SAE pump sizesSeries 59000. 18 – 27Fast serviceWhether you need a new pump drive or service support on anexisting drive, our modular assembly system and experiencedregional distribution network lets us get you what you need fast.Integration supportGetting the most out of your equipment depends on closeintegration between all components. Our application expertscan help integrate your entire system from the engine to thepump drives, powershift transmissions, HMD transmissions,planetary drives, and inboard planetary axles.700 hp* (522 kW) max input power–– 1250 lb-ft* (1694 Nm) max input torque–– 2, 3, or 4 pump drives–– A, B, C, or D available SAE pump sizesSeries 56000. 28 – 39950 hp* (708 kW) max input power–– 2000 lb-ft* (2712 Nm) max input torque–– 2, 3, 4, or 5 pump drives–– D, E, or F available SAE pump sizesSeries 57000. 40 – 45950 hp (708 kW) max input power–– 2000 lb-ft* (2712 Nm) max input torque–– 4 pump drives – 14 in and 16 in centers–– C, D, or E available SAE pump sizesSAE engine flywheel andhousing standard. 46 – 47Formulas. 48 – 49SAE hydraulic pump andmotor drive standards.50* Ratings may vary depending upon application and service.Application and installation are subject to review by John Deere.3

Funk Modular Pump DrivesPump drive selection procedureThe performance and reliability of a hydraulic pump drive is directly related to the proper selection of the pump driveseries and options. Follow the steps below to determine the options required for your application.Selection of the proper pump drive series can be accomplished by using either the “torque method” or “power method”described below.Torque methodPower method1. Determine the net peak torque (lb-ft, or Nm) transmitted tothe pump drive from the prime mover. Remember to deductany continuous parasitic losses.1. Determine the net peak power (hp or kW) transmitted to thepump drive from the prime mover.2. Determine the maximum pump drive input torque (lb-ft, orNm) required to drive the hydraulic pumps attached to thepump drive. Be sure to consider the pump drive ratio.3. Using the lesser of the torque values calculated above, selecta pump drive series with a maximum input torque capacitythat exceeds the torque required for the application.2. Determine the equivalent power (hp or kW) by multiplying the netpeak power by the appropriate service factor for the application.A list of service factors are found on the table on page 5.3. Using the equivalent power calculated above, select the properpump drive series with a maximum input power capacity thatexceeds the equivalent power for the application.Additional steps required for determining the proper pump drive configuration:4. Determine the number of pump pads required by making a selection from the models available within the pump drive series. Besure to take into consideration the maximum output torque rating per pad, and the center distance between the mounting padsfor clearance of the pumps and their hydraulic plumbing.5. S elect a gear ratio from the options available for the selected model which will provide the desired pump speed and flow. Be sureto consider the maximum recommended speed for both the pump drive series and the hydraulic pumps being used.6. Select the desired input configuration from the available options for the pump drive series:––Engine mounted — drive plate or torsional coupling driven––Engine mounted — clutch-driven (consider clutch limiting speeds and torque capacity)––Remote mounted7. Select the desired output configurations from the available options for the pump drive series:––Pump adapter plates––Pump shaft adapter sleeves (if required)––Drive shaft or PTO options8. After the pump drive configuration has been determined, your John Deere Power Systems distributor can assist you in reviewingthe application to determine if it will meet your expectations for service life based on the duty cycle provided.4

Service factorsService factorsPrime moverDuration of serviceElectric motor,steam turbine, orhydraulic motorMulti-cylinderinternal combustion engineSingle cylinderinternal combustion engineUniformModerate shockHeavy shockOccasional 1/2 hr. per day0.500.801.25Intermittent 3 hr. per day0.801.001.50Over 3 hr. up to and incl. 10 hr. per day1.001.251.75Over 10 hr. per day1.251.502.00Occasional 1/2 hr. per day0.801.001.50Intermittent 3 hr. per day1.001.251.75Over 3 hr. up to and incl. 10 hr. per day1.251.502.00Over 10 hr. per day1.501.752.25Occasional 1/2 hr. per day1.001.251.75Intermittent 3 hr. per day1.251.502.00Over 3 hr. up to and incl. 10 hr. per day1.501.752.25Over 10 hr. per day1.752.002.50Clutch capacitiesImportant noticeOperating speeds and working torqueClutchmodelMax. safeoperating speed(rpm)Working torquelb-ft (Nm)C-1103100328 (444.4)C-1112850387 (524.4)SP-2112850910 (1233.1)SP-21424001620 (2195.1)The presence of torsional resonant frequencies in the system cancause damage to components in the drivetrain.The assembler of the drive and driven equipment is responsible forensuring that damaging torsional resonant frequencies are notpresent in the system.Torsional vibration analysis can be made by the engine manufacturer,torsional coupling supplier, and independent consultants. John Deereis prepared to supply the torsional data relating to the pump drivecomponents and assist in evaluation of analyses in order to preventdamage to transmissions designed and manufactured by John Deere.5

Funk Modular Pump DrivesSeries 28000 single direct driveRatingsInput torqueClutch-dependentInput speedClutch-dependentPump rotationEnginewiseApproximate weight28TOption selectionsRefer to pages 20 – 21.28T6120 lb (55 kg)

Specifications in (mm)Ratings28105 mm (in)Max input torque650 lb-ft (880 Nm)Input speedAs requiredMax power360 hp (268 kW)Pump rotationEnginewiseApproximate weight2810550 lb (23 kg)Option selectionsRefer to pages 20 – 21.RatingsMax input torque500 lb-ft (678 Nm)Input speedAs requiredMax power250 hp (186 kW)281FC (flex coupling)Pump rotationEnginewiseApproximate weight281FC35 lb (16 kg)Flywheel coversSAE sizes 2, 3, or 4Pump adaptationsSAE sizes B, BB, C, or DDrive flange sizesNominal clutch size10 in (254.0 mm) or 11-1/2 in (292.1 mm)Note:0.38 (9.6) – SAE 40.5 (12.7) – SAE 2 and 3Refer to pages 20 – 21 for other dimensions.7

Funk Modular Pump DrivesSeries 28000 singleRatingsOilMax input torque575 lb-ft (780 Nm)Max output torque575 lb-ft (780 Nm)Max input or output speed3000 rpmMax input power325 hp (242 kW)Max output power325 hp (242 kW)For further explanation of ratings, see service factors on page 5.Pump rotationAnti-enginewiseAny oil that meets EP gear lubrication specification MIL-L-2105Cor API classification GL-5.Approximate weight28101120 lb (55 kg)28103110 lb (50 kg)28275175 lb (80 kg)Option selectionsRefer to pages 20 – 21.281018

Specifications mm (in)28103282759

Funk Modular Pump DrivesSeries 28000 double127 mm (5 in) gear centersRatingsOilMax input torque650 lb-ft (881 Nm)Max output torque575 lb-ft (780 Nm)Max input or output speed3000 rpmMax input power360 hp (268 kW)Max output power325 hp (242 kW) per pump padFor further explanation of ratings, see service factors on page 5.Pump rotationAnti-enginewiseAny oil that meets EP gear lubrication specification MIL-L-2105Cor API classification GL-5.Approximate weight28102160 lb (73 kg)28104150 lb (68 kg)28180215 lb (98 kg)Option selectionsRefer to pages 20 – 21.2810210

Specifications mm (in)281042818011

Funk Modular Pump DrivesSeries 28000 double152.7 mm (6 in) gear centersRatingsOilMax input torque750 lb-ft (1017 Nm)Max output torque650 lb-ft (881 Nm) per pump padMax input or output speed3000 rpmMax input power360 hp (268 kW)Max output power360 hp (268 kW) per pump padFor further explanation of ratings, see service factors on page 5.Pump rotationAnti-enginewiseAny oil that meets EP gear lubrication specification MIL-L-2105Cor API classification GL-5.Approximate weight2826XXP175 lb (80 kg)2826XR165 lb (75 kg)2826XXC230 lb (105 kg)Option selectionsRefer to pages 20 – 21.2826XXP12

Specifications mm (in)2826XR2826XXC13

Funk Modular Pump DrivesSeries 28000 tripleRatingsOilMax input torque750 lb-ft (1017 Nm)Max output torque650 lb-ft (881 Nm) per pump padMax input or output speed3000 rpmMax input power360 hp (268 kW)Max output power360 hp (268 kW) per pump padFor further explanation of ratings, see service factors on page 5.Pump rotationAnti-enginewiseAny oil that meets EP gear lubrication specification MIL-L-2105Cor API classification GL-5.Approximate weight28211220 lb (100 kg)28212210 lb (96 kg)28213275 lb (125 kg)Option selectionsRefer to pages 20 – 21.2821114

Specifications mm (in)282122821315