Wacker Neuson 901s, 901sp Compact Loader Service Manual
231 pages · Publication 1000188511
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What's inside
From the manual's own table of contents: 55 sections, 241 entries. See sample pages (PDF, 728 KB)
General55 topics
- Important information on this service manual
- Identification of warnings and dangers
- Designated use and exemption from liability
- Type labels and component numbers
- Machine overview
- Cab overview
- Cab (legend)
- Round indicating instrument overview
- Round indicating instrument (legend)
- Maintenance accesses
- Engine compartment: overview
- Radiator cover overview
- Chassis overview
- Tilting the cab
- Towing the machine
- Towing the loader
- Towing
- Chassis
- Engine
- Fuel injection pump
- Capacity
- Tightening torque
- Travelling drive
- Brakes
- Work hydraulics
- Pilot control
- Power Flow additional control circuit (sp)
- Electric units
- Fuse box behind the seat on the left
- Main fuse box with relays
- Relay box at rear left of cab
- Tyres
- Noise levels
- Vibration
- Coolant compound table
- Dimensions
- Model-specific tightening torques
- General tightening torques
- Tightening torques for hydraulic screw connections (dry assembly)
- Tightening torques for high-resistance screw connections
- Fluids and lubricants
- Additional oil change and filter replacement (hydraulics)
- Maintenance label
- Explanation of symbols on the maintenance label
- Maintenance plan (overview)
- Introduction
- Fuel system
- Specific safety instructions
- Refuelling
- Stationary fuel pumps
- Diesel fuel specification
- Bleeding the fuel system
- Emptying the fuel tank
- Fuel filter with water separator
- Replacing the fuel filter
Engine lubrication system4 topics
- Checking the oil level
- Filling up engine oil
- Changing engine oil
- Replacing the engine oil filter cartridge
Cooling system2 topics
- Checking/filling up coolant
- Draining coolant
Air filter2 topics
- Replacing the filter
- Functional check once a week of the dust valve
V-belts4 topics
- Checking V-belt tension
- Retightening V-belts
- Checking the V-belt of the air conditioning system (option)
- Tightening the V-belt of the air conditioning system (option)
Pressure check10 topics
- General
- Standard micro ports
- Variable displacement pump measuring points
- Preparatory work
- Main pressure check (P1 & P2)
- Work hydraulics pressure check
- Checking the pilot control pressure of the drive hydraulics
- Checking the parking brake release pressure
- Checking the DA control pressure
- Checking the pressure of the 3rd control circuit (Power Flow option 901sp)
Hydraulic system8 topics
- Checking the hydraulic oil level
- Bleeding the hydraulic pump
- Filling up hydraulic oil
- After changing the hydraulic oil
- Changing hydraulic oil
- Monitoring the hydraulic oil reflux filter
- Replacing the reflux filter
- Checking hydraulic pressure lines
Checking drive track tension1 topic
- Checking track tension
Tyres3 topics
- Raising and jacking up the machine
- Mounting the wheels
- Airboss tyres (option)
Lubrication work48 topics
- Loader unit
- Lubrication points on the bucket
- Maintenance of attachments
- Electric system
- Service and maintenance work at regular intervals
- Instructions concerning specific components
- Alternator
- Battery
- Jump-starting the engine
- General maintenance work
- Cleaning
- General instructions for all areas of the machine
- Inside the cab
- Under the cab
- Exterior of the machine
- Engine compartment
- Rear window
- Screw connections and attachments
- Pivots and hinges
- Maintenance strut of loader unit
- Checking and adjusting valve clearance
- Checking and adjusting the fuel injectors
- Replacing the injection pump/setting fuel injection time
- Adjusting engine revs
- Compression pressure
- Removing/mounting the cylinder head
- Sealing the breather valve
- Sealing the intake/exhaust manifold
- Oil pressure switch
- Switching off minus compensation
- Exhaust gas turbocharger (901 sp)
- Rexroth AA20 VG45 hydraulic pump
- Pump unit: exploded view
- Pump distribution
- Main valve block
- Ports
- Legend
- Main valve block diagram
- Hydraulic control
- Control lever
- Float position
- Joystick (left)
- Joystick (right)
- Auxiliary hydraulics control
- Function
- Adjustment
- Drive (exploded view)
- Travelling drive layout
Valves4 topics
- Auxiliary hydraulics pilot valve
- Distributing block with brake (brake valve)
- 3/2 directional valve
- Single parallel bucket lift (switched for upwards movement)
Hydraulics diagram ISO standard (901s)1 topic
- Hydraulics diagram – legend (901s)
Hydraulics diagram ISO standard (901sp)1 topic
- Hydraulics diagram – legend (901sp)
Hydraulics diagram H controls with options (901s)1 topic
- Hydraulics diagram H controls with options (901s): legend
Hydraulics diagram H controls with options (901sp)1 topic
- Hydraulics diagram H controls with options (901sp): legend
Show all 56 sections
Relays1 topic
- Use, mode of function
cab StVO Austrian road traffic regulations (legends)40 topics
- Wiring harness 1000171481: attachment control (option)
- Cab door (option) legend and wiring harness 1000175468
- Rear cab (option) legend and wiring harness 1000175464
- Wiring diagram from serial no. DC00816 (legend)
- Wiring diagram (1) from serial no. DC00816
- Wiring diagram (2) from serial no. DC00816
- 901s engine – chassis wiring harness 1000169726 (legend)
- 901s engine – chassis wiring harness 1000169726
- 901sp wiring harness 1000175467: engine – chassis (option)
- 901sp cab (option) wiring harness 1000169725 (legend)
- Front lights wiring harness and legend 1000169728
- cab StVO Austrian road traffic regulations (legends)
- Attachment control (option) wiring harness 1000171481
- Rear working light
- Wiring harness
- BP – Biohyd SE 46
- Properties
- Biodegradable oil Panolin
- Rearview mirror package
- Extra weight
- Drive interlock (antitheft protection)
- Disabling the drive interlock
- Enabling the drive interlock
- Programming
- Rotating beacon
- Crane-handling bracket
- Dual parallel bucket lift (switched on for up and down movements)
- 8/2 directional valve – H controls (work hydraulics lock)
- Hydraulic quickhitch system (HQS) option
- Power Flow valve (901 sp)
- Power Flow ports
- Speed Control valve (901 sp)
- Load stabiliser valve
- Backup warning system
- Position
- Side window
- Fixture
- Road travel certification
- Attachment controls
- Airboss tyres
Inside this manual
Real pages from this service manual (231 pages). Open the sample pages (PDF, 727 KB)
- Specifications, page 30: SERV-HB 901s sp DE – Edition 1.0 * * 901s_sp210.fm
- Troubleshooting, page 150: SERV-HB 901s sp EN – Edition 1.0 * 901s_sp510.fm
- Diagram, page 174: SERV-HB 901s sp EN – Edition 1.0 * 901s_sp611.fm
- Color page, page 125: SERV-HB 901s sp EN – Edition 1.0 * 901s_sp510.fm
- Color page, page 15: SERV-HB 901s sp EN – Edition 1.0 * 901s_sp110.fm
- Foldout diagram, page 192: Electric system
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 901s, 901sp 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, 231 pages
Quantity one is the manual described above.
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