New Holland Boomer 20, 25 Tractor Service Manual
873 pages · Publication 48017684
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What's inside
From the manual's own table of contents: 34 sections, 62 entries. See sample pages (PDF, 713 KB)
Engine3 topics
- Engine and crankcase
- Engine lubrication system
- Engine cooling system
Clutch2 topics
- Clutch and components
- Slip clutch or flywheel damper
Transmission1 topic
- Mechanical transmission
Front axle system4 topics
- Powered front axle
- Front bevel gear set and differential
- Final drive hub, steering knuckles, and shafts
- Final drives
Rear axle system1 topic
- Rear bevel gear set and differential
Hydrostatic drive4 topics
- Transmission and steering hydrostatic control
- Hydrostatic transmission
- Reservoir, cooler, and lines
- Pump and motor components
Power Take-Off (PTO)2 topics
- Rear mechanical control
- Rear electro-hydraulic control
Show all 34 sections
Engine cooling system10 topics
- Engine oil system
- Parking brake electrical system
- Rear Power Take-Off (PTO) control system
- Harnesses and connectors
- Engine starting system
- Cold start aid
- Battery
- External lighting
- External lighting switches and relays
- Warning indicators, alarms, and instruments
Platform, cab, bodywork, and decals1 topic
- Mechanically-adjusted operator seat
Inside this manual
Real pages from this service manual (873 pages). Open the sample pages (PDF, 712 KB)
- Specifications, page 362: Hydrostatic drive - Pump and motor components
- Troubleshooting, page 635: Steering - Hydraulic control components
- Diagram, page 765: Electrical systems - Harnesses and connectors
- Color page: Steering - Hydraulic control components
- Color page: Steering - Hydraulic control components
- Foldout diagram: Electrical systems - Harnesses and connectors
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the Boomer 20, 25 are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
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This is a service manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 873 pages
Quantity one is the manual described above.
Fast free USA shipping
Ships in 1 business day.
60-day returns
Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy
Binder not included
Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).