New Holland Workmaster 25S Tier 4B Service Manual Download Page 1

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Part number 51421067

edition English

April 2018

SERVICE MANUAL

Workmaster

™

25S

Tier 4B (final)

Compact Tractor

Printed

in U.S.A.

New

Holland is a trademark registered in the United States and many other countries,

owned or licensed to CNH Industrial N.V., its subsidiaries or affiliates.

Summary of Contents for Workmaster 25S Tier 4B

Page 1: ...Workmaster 25S Tier 4B final Compact Tractor Printed in U S A 2018 CNH Industrial America LLC All Rights Reserved New Holland is a trademark registered in the United States and many other countries owned or licensed to CNH Industrial N V its subsidiaries or affiliates ...

Page 2: ...SERVICE MANUAL Workmaster 25S 25 Hp without cab 51421067 20 04 2018 EN Find manuals at https best manuals com ...

Page 3: ...ed front axle 25 1 25 102 Front bevel gear set and differential 25 2 25 108 Final drive hub steering knuckles and shafts 25 3 Rear axle system 27 27 100 Powered rear axle 27 1 27 106 Rear bevel gear set and differential 27 2 27 120 Planetary and final drives 27 3 Hydrostatic drive 29 29 200 Mechanical control 29 1 29 218 Pump and motor components 29 2 29 202 Hydrostatic transmission 29 3 Power Tak...

Page 4: ...l valve 35 5 35 355 Hydraulic hand control 35 6 35 726 Excavator and backhoe hydraulic controls 35 7 Hitches drawbars and implement couplings 37 37 120 Rear three point hitch linkage 37 1 Steering 41 41 101 Steering control 41 1 41 106 Tie rods 41 2 41 206 Pump 41 3 41 216 Cylinders 41 4 Wheels 44 44 511 Front wheels 44 1 44 520 Rear wheels 44 2 Electrical systems 55 55 000 Electrical system 55 1 ...

Page 5: ...rking brake electrical system 55 13 55 404 External lighting 55 14 55 405 External lighting switches and relays 55 15 55 510 Cab or platform harnesses and connectors 55 16 55 408 Warning indicators alarms and instruments 55 17 55 027 Cruise control 55 18 Platform cab bodywork and decals 90 90 114 Operator protections 90 1 90 120 Mechanically adjusted operator seat 90 2 90 100 Engine hood and panel...

Page 6: ...INTRODUCTION 51421067 20 04 2018 1 Find manuals at https best manuals com ...

Page 7: ... Torque Standard torque data for hydraulic connections 6 Basic instructions Shop and assembly 13 General specification 15 General specification 19 Consumables 20 Dimension 21 Product identification 24 Product identification machine orientation 25 See content for specific models 51421067 20 04 2018 2 Find manuals at https best manuals com ...

Page 8: ...y parts and or components not approved by the manu facturer including those used for the servicing or repair of the product manufactured or marketed by the manufacturer In any case no warranty is given or attributed on the product manufactured or marketed by the manufacturer in case of damages caused by parts and or components not approved by the manufacturer The manufacturer reserves the right to...

Page 9: ...h or serious injury CAUTION indicates a hazardous situation that if not avoided could result in minor or moderate injury FAILURE TO FOLLOW DANGER WARNING AND CAUTION MESSAGES COULD RESULT IN DEATH OR SERIOUS INJURY Machine safety NOTICE Notice indicates a situation that if not avoided could result in machine or property damage Throughout this manual you will find the signal word Notice followed by...

Page 10: ...t allow coolant mixtures to get into the soil Collect and dispose of coolant mixtures properly The air conditioning system contains gases that should not be released into the atmosphere Consult an air condi tioning specialist or use a special extractor to recharge the system properly Repair any leaks or defects in the engine cooling system or hydraulic system immediately Do not increase the pressu...

Page 11: ...on Application of grease or other lubricants to hydraulic connectors should be avoided If clean hydraulic oil is already on the connection it is not required to remove the oil Generally application of grease May cause a significant change in the torque required to properly tighten the connection May reduce the connection s resistance to vibration Excessive grease may displace an elastomer seal dur...

Page 12: ... 7 220 162 3 132 97 4 M48 x 2 440 324 5 264 194 7 273 201 4 164 121 M60 x 2 525 387 2 315 232 3 330 243 4 198 146 S Series connectors are used with O Ring Face Seals ORFS L Series connectors are used with 37 flare Torque values for metric O Ring Boss ORB port plugs Ferrous Non ferrous Metric thread Internal hex N m lb ft 10 External hex N m lb ft 10 N m lb ft 10 M8 x 1 8 5 6 3 10 5 7 7 6 3 4 6 M10...

Page 13: ...g Face Seals ORFS L Series connectors are used with 37 flare Torque values for metric port connections Metric face seal ports and stud ends Metric tube Outside Diameter OD mm in Ferrous Non Ferrous Metric thread S Series L Series S Series N m lb ft 10 L Series N m lb ft 10 S Series N m lb ft 10 L Series N m lb ft 10 M10 x 1 4 0 157 21 15 5 12 5 9 2 M12 x 1 5 4 0 157 6 0 236 47 34 7 32 23 6 28 20 7...

Page 14: ... Series connectors are used with O Ring Face Seals ORFS L Series connectors are used with 37 flare Torque values for inch O Ring Boss ORB port adjustable connections S Series L Series SAE dash size UN UNF thread size Inch tube OD mm in Ferrous N m lb ft 10 Non Ferrous N m lb ft 10 Ferrous N m lb ft 10 Non Ferrous N m lb ft 10 2 5 16 24 3 18 0 125 8 5 6 3 5 3 7 3 3 8 24 4 76 0 187 10 5 7 7 9 3 6 9 ...

Page 15: ...4 25 1 M8 x 1 25 34 25 1 19 3 4 M10 x 1 5 74 54 6 M10 x 1 5 74 54 6 25 1 M10 x 1 5 74 54 6 M12 x 1 75 137 101 M12 x 1 75 137 101 32 1 1 4 M10 x 1 5 74 54 6 M14 x 1 5 189 139 4 38 1 1 2 M12 x 1 75 137 101 M16 x 2 310 228 6 51 2 M12 x 1 75 137 101 M20 x 2 5 575 424 1 64 2 1 2 M12 x 1 75 137 101 M24 x 3 575 424 1 76 3 M16 x 2 310 228 6 M30 x 3 5 680 501 5 89 3 1 2 M16 x 2 310 228 6 102 4 M16 x 2 310 ...

Page 16: ...10 228 6 127 5 5 8 11 310 228 6 Tapered thread connection tightening British Standard Pipe Taper BSPT thread size inch National Pipe Thread Fuel NPTF thread size inch Turns from finger tight 1 8 28 1 8 27 2 3 1 4 19 1 4 18 2 3 3 8 19 3 8 18 2 3 1 2 14 1 2 14 2 3 3 4 14 3 4 14 2 3 1 11 1 11 1 2 1 5 2 5 1 1 4 11 1 1 4 11 1 2 1 5 2 5 1 1 2 11 1 1 2 11 1 2 1 5 2 5 2 11 2 11 1 2 1 5 2 5 Torque values f...

Page 17: ...e connection instead of O Ring Face Seals ORFS sizes 16 and up Torque values for 37 flare connections Joint Industry Council JIC SAE dash size UN UNF thread size Metric tube OD mm Inch tube OD mm Swivel nut torque N m lb ft 10 2 5 16 24 3 18 8 25 6 1 3 3 8 24 4 76 11 5 8 5 4 7 16 20 6 6 35 15 5 11 4 5 1 2 20 8 7 94 20 14 8 6 9 16 18 10 9 52 25 18 4 8 3 4 16 12 12 7 52 38 4 10 7 8 14 16 15 88 81 59...

Page 18: ...punch or seal installation tool Do not tap the seal with a hammer or mallet 6 While you insert the seal check that the seal is perpendicular to the seat When the seal settles make sure that the seal makes contact with the thrust element if required 7 To prevent damage to the seal lip on the shaft position a protective guard during installation operations O ring seals Lubricate the O ring seals bef...

Page 19: ...battery ground cable from the machine battery The electronic monitoring system and charging system will be damaged if this is not done 5 Remove the battery ground cable Reconnect the cable when you complete welding WARNING Battery acid causes burns Batteries contain sulfuric acid Avoid contact with skin eyes or clothing Antidote external Flush with water Antidote eyes flush with water for 15 minut...

Page 20: ... Capacities Fuel tank 25 L 6 6 US gal Cooling system capacity 3 3 L 3 49 US qt Engine crankcase With Filter 2 9 L 3 US qt Rear axle transmission Includes hydraulics HST 12 5 L 3 US gal Front axle 2 L 1 US gal Cooling system Type Pressurized liquid with recirculating bypass Water pump Type Centrifugal Drive V Belt Cooling system capacity 3 3 L 3 49 US qt Belt deflection 10 14 mm 0 39 0 55 in when 1...

Page 21: ...l Control Forward reverse individual pedal Differential lock Mechanical foot Service brake Type Wet disc oil bath Actuation Mechanical one pedal Number of plates per axle 2 Total number pf Plates 4 Disc lining diameter OD 108 mm 4 25 in Disc lining diameter ID 65 mm 2 56 in Disc thickness 3 4 mm 0 1338 in Lining type Material Paper Service brake pedal parking lock Yes Minimum wear thickness 0 4 mm...

Page 22: ...ependent Clutch type Wet disc Number of plates 6 Actuation Switch Selector Rear mid rear mid Direction of rotation As viewed from rear of tractor Clockwise Number of splines 15 Shaft size 25 0 mm 0 98 in Engine speed for 2500 RPM mid PTO operation 2841 RPM Engine speed for 540 RPM 2933 RPM Hydraulic lift system Category CAT 1 Type Open center Pump type Gear Pump capacity 25 L min 6 6 US gpm System...

Page 23: ...ble mass 800 kg 1764 lb Independent brake towable mass 1600 kg 3527 lb Tires Front Turf 18x 8 50 10 4PR R3 Industrial 18x 8 50 10 4PR R4 Rear Turf 26 x 12 0 12 4PR R3 Industrial 26 x 12 0 12 4PR R4 Wheel bolt torques Front wheel disc to hub FWD 43 57 N m 32 42 lb ft Rear wheel disc to axle 43 57 N m 32 42 lb ft Roll Over Protective Structure ROPS attaching bolt torques ROPS to rear axle 76 N m 56 ...

Page 24: ...l Fuels it may be necessary to change the engine oil engine oil filter and fuel filter elements more frequently than with Diesel Fuels Biodiesel Fuel can remove rust and particles from the inside of on site fuel storage tanks that would normally adhere to the sides of the tank Like particle deposits that commonly occur with Diesel Fuel these particles can become trapped by the machine fuel filters...

Page 25: ...UPER GOLD 10W 30 Engine Oil NEW HOLLAND AMBRA SUPER GOLD 15W 40 NEW HOLLAND AMBRA MULTI G 134 HYDRAULIC TRANSMISSION OIL Transmission Hydraulic Oil NEW HOLLAND AMBRA F200A HYDRAULIC FLUID Front Axle Gear Oil NEW HOLLAND AMBRA HYPOIDE 90 GEAR LUBE Grease NEW HOLLAND AMBRA GR 9 MULTI PURPOSE GREASE Coolant CNH XHD HEAVY DUTY COOLANT ANTI FREEZE 51421067 20 04 2018 20 ...

Page 26: ...2 4PR Up Position TBD Down Position TBD Ind Tires 26 x 12 0 12 4PR Up Position 2220 mm 87 in Down Position 1626 mm 64 in 4 WIDTH Rear Axle Outside to Outside of tire Turf Tires 26 x 12 0 12 4PR TBD Ind Tires 26 x 12 0 12 4PR 1187 mm 47 in 5 MINIMUM GROUND CLEARANCE under drawbar support Turf Tires 26 x 12 0 12 4PR TBD Ind Tires 26 x 12 0 12 4PR 306 mm 12 in 51421067 20 04 2018 21 ...

Page 27: ...INGS 6 FRONT Turf Tires 26 x 12 0 12 4PR TBD Ind Tires 26 x 12 0 12 4PR 916 mm 36 in 7 REAR Turf Tires 26 x 12 0 12 4PR TBD Ind Tires 26 x 12 0 12 4PR 880 mm 35 in WEIGHT less tires HST FWD 1175 kg 2590 lb NHIL17CT01125FA 1 51421067 20 04 2018 22 ...

Page 28: ...INTRODUCTION NHIL17CT01124FA 2 51421067 20 04 2018 23 ...

Page 29: ...n Number PIN plate 2 for the engine is located on the forward end of the valve cover The numbers on the plate are important in the event your engine should require future service NHIL17CT01119AA 2 Transmission number The Product Identification Number PIN plate 3 for the transmission is located below the Power Take Off PTO shield The numbers on the plate are important in the event your transmission...

Page 30: ...ut cab NA NOTE On this equipment left hand and right hand are determined by standing behind the unit looking in the direc tion of travel NHIL17CT01343AA 1 Left hand view NHIL17CT01345AA 2 Right hand view NHIL17CT01346AA 3 Rear view NHIL17CT01344AA 4 Front view 51421067 20 04 2018 25 ...

Page 31: ...UPER GOLD 10W 30 Consumables 20 NEW HOLLAND AMBRA SUPER GOLD 15W 40 Consumables 20 NEW HOLLAND AMBRA MULTI G 134 HYDRAULIC TRANSMISSION OIL Consumables 20 NEW HOLLAND AMBRA F200A HYDRAULIC FLUID Consumables 20 NEW HOLLAND AMBRA HYPOIDE 90 GEAR LUBE Consumables 20 NEW HOLLAND AMBRA GR 9 MULTI PURPOSE GREASE Consumables 20 CNH XHD Heavy Duty Coolant Anti freeze Consumables 20 51421067 20 04 2018 26 ...

Page 32: ...SERVICE MANUAL Engine Workmaster 25S 25 Hp without cab 51421067 20 04 2018 10 ...

Page 33: ...nd crankcase 10 1 10 216 Fuel tanks 10 2 10 206 Fuel filters 10 3 10 202 Air cleaners and lines 10 4 10 254 Intake and exhaust manifolds and muffler 10 5 10 400 Engine cooling system 10 6 10 414 Fan and drive 10 7 51421067 20 04 2018 10 ...

Page 34: ...CONSUMABLES INDEX Consumable Reference PAGE Loctite 271 Engine Remove 10 1 10 Loctite 271 Engine Install 10 1 13 NEW HOLLAND AMBRA AGRIFLU Radiator Filling 10 6 14 51421067 20 04 2018 10 ...

Page 35: ...51421067 20 04 2018 10 ...

Page 36: ...Engine 10 Engine and crankcase 001 Workmaster 25S 25 Hp without cab 51421067 20 04 2018 10 1 10 001 1 ...

Page 37: ...Contents Engine 10 Engine and crankcase 001 SERVICE Engine Remove 4 Install 12 See content for specific models 51421067 20 04 2018 10 1 10 001 2 ...

Page 38: ...CONSUMABLES INDEX Consumable Reference PAGE Loctite 271 Engine Remove 10 1 10 Loctite 271 Engine Install 10 1 13 51421067 20 04 2018 10 1 10 001 3 ...

Page 39: ...dicated in this manual including protective goggles gloves and safety footwear Failure to comply could result in death or serious injury W0208A WARNING Heavy objects Lift and handle all heavy components using lifting equipment with adequate capacity Always support units or parts with suitable slings or hooks Make sure the work area is clear of all bystanders Failure to comply could result in death...

Page 40: ... 3 4 Drain the engine coolant into a clean container 1 NOTE The cooling system capacity is 3 3 L 3 49 US qt NHIL17CT01959AA 4 5 Remove the radiator cap 1 to accelerate draining all of the fluid NHIL17CT01960AA 5 6 Remove the fuel filter by removing one bolt 1 NHIL17CT01962AA 6 51421067 20 04 2018 10 1 10 001 5 ...

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