If your machine is a 1101c or a 1101cp, this Wacker Neuson 1101c, 1101cp service manual PDF (OEM document 1000188516, all 223 pages) covers it, right down to the Power Flow third control circuit fitted only to the cp. Hydraulics diagrams for both ISO standard and H control layouts close out the hydraulic section, each with its own legend, beside an exploded view of the Rexroth AA20 VG45 pump. Wiring is organised by harness number: chassis harness 1000169726, cab harness 1000169725, and the cp option harnesses, every one paired with a legend. Check reflux filter control pressure against the 5 bar spec, replace that filter every 1000 service hours, and pull the cylinder-head bolts to 41.1 to 46.9 Nm on the first pass. Some days it's just you and a dead machine. Print what you need; a greasy page on the bench still reads fine.
What's Inside This Wacker Neuson 1101c, 1101cp Manual
| System | Pages | Key Topics |
|---|---|---|
| Operation | 9-26 | Important Information on This Service Manual, Identification of Warnings and Dangers, Designated Use and Exemption From Liability, Type Labels and Component Numbers |
| Specifications | 27-38 | Chassis, Travelling Drive, Brakes, Work Hydraulics, Pilot Control, Additional “Power Flow” Control Circuit |
| Engine | 97-118 | Td2011 L04W, Fuel System, Checking and Adjusting Valve Clearance, Checking and Adjusting the Fuel Injectors, Replacing the Injection Pump/Setting Fuel Injection Time, Engine Revs |
| Hydraulic System | 119-158 | Rexroth AA20 VG45 Hydraulic Pump (Unit: Exploded View, Distribution), Main Valve Block (Ports and Valves, Legend, Diagram) |
| Electrical System | 159-202 | Ohm's Law; Power, Measuring Equipment, Measuring Methods, Cable Colour Coding, Relays (Use, Mode of Function) |
| Options | 203-223 | Rear Working Light (Wiring Harness, Ports), Bp – Biohyd Se 46 (Properties), Biodegradable Oil Panolin (Properties), Rearview Mirror Package, Extra Weight |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cylinder-head bolt 1st pass | 41.1 – 46.9 Nm | p. 29 |
| Cylinder-head bolt 2nd pass | 85.3 – 91.1 Nm | p. 29 |
| Control pressure for reflux filter | 5 bar (72.5 psi) | p. 82 |
| Replacement interval for reflux filter | 1000 service hours (once every year) | p. 83 |
| Engine Output | 63 kW | p. 28 |
| Max. Engine Torque | 270 Nm | p. 28 |
| Fuel Tank Capacity | 72 l | p. 29 |
| Engine Oil Capacity (max) | 10 l | p. 29 |
| Hydraulic Oil Tank Capacity | 35 l | p. 31 |
| Cylinder-head bolt tightening torque (2nd pass) | 85.3 – 91.1 Nm | p. 29 |
| Main bearing screw tightening torque | 93.2 – 98.1 Nm | p. 29 |
| Battery | 12 V 88 Ah | p. 32 |
Wacker Neuson 1101c, 1101cp Common Problems This Manual Covers
Wacker Neuson 1101c engine runs but machine will not move or respond to drive levers
Check hydraulic oil level; the tank holds 35 l. Trace the drive circuit against the hydraulic schematic on page 144 and verify brake release pressure at the drive motors. Retorque the travelling drive fasteners to 180 Nm if the motor mounting has been disturbed.
Manual Section: Hydraulic System p. 144Engine fires and runs about 30 seconds, then shuts down on its own
Check engine oil level before anything else; low oil trips the shutdown sensor. Capacity is 10 l maximum, listed on page 29. Inspect the engine cable linkage for loose connections, then test the oil sensor circuit with a multimeter using the wiring diagram on page 170.
Manual Section: Engine TroubleshootingNo hydraulic function or weak lift, bucket cylinders creep down under load
Check the hydraulic return filter first; a plugged element bypasses at 5 bar (72.5 psi) control pressure per page 82. Replace it at 1000 service hours or yearly, whichever comes first. Verify oil level in the 35 l tank before chasing the main valve block or pump.
Manual Section: Hydraulic System p. 82Engine hard to start when cold, rough idle, black smoke under load
Replace the fuel and air filter elements, then bleed the fuel system before cranking. Set valve clearance cold to 0.3 mm intake and 0.5 mm exhaust per the specs on page 28. Follow the engine service procedures starting on page 101 if the injectors need testing.
Manual Section: Engine p. 101Engine cranks slowly or will not turn over at all in cold weather
Test the battery under load; the machine takes a 12 V 88 Ah unit, listed on page 32. Clean and tighten both ground straps, then measure voltage drop across the starter cables while cranking. Trace the starter circuit on the wiring diagram on page 170 if voltage checks pass.
Manual Section: Electrical System p. 170Frequently Asked Questions
What are the cylinder head bolt torque specs for a Wacker Neuson 1101c, 1101cp?
The cylinder-head bolts must be tightened in three passes. The first pass is 30 Nm (22 ft. lbs.), the second pass is 80 Nm (59 ft. lbs.), and the third pass is 160 Nm (118 ft. lbs.), followed by a retightening angle of 90°. p. 112
What are the valve clearance specifications for the Wacker Neuson 1101c, 1101cp engine?
The valve clearance for the intake valve is 0.3 mm (0.012") and for the exhaust valve is 0.5 mm (0.02"). These settings should be performed on a cold engine or a warm engine after it has cooled for at least 0.5 hours. p. 101
What is the replacement interval for the hydraulic oil filter insert on the Wacker Neuson 1101c, 1101cp?
The hydraulic oil filter insert should be replaced for the first time after 50 service hours, and then every 500 service hours under normal operating conditions. p. 41
What is the fuel tank capacity for the 1101c and 1101cp models?
Both the 1101c and 1101cp models have a fuel tank capacity of 72 liters (19 gallons). p. 29
How do I bleed the fuel system?
To bleed the fuel system, raise the cab, pump with manual pump A until fuel comes out of the reflux line, and then start the engine. If the engine does not run smoothly, repeat the procedure. p. 50
How will I receive this Wacker Neuson 1101c Service Manual?
All 223 pages arrive as one searchable PDF at checkout. Read it at the desk, then take the phone out to the machine.
Am I able to print pages from this Wacker Neuson 1101c manual?
Yes. No DRM, nothing blocks printing, so run off the pages you need on whatever printer you have.
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