A worn center joint or a drive circuit bleeding pressure will park a loader faster than any engine fault. This Weidemann 1150 CX30 repair manual PDF, factory document 1000240977, packs 336 pages of workshop procedures for this articulated wheel loader. Hydraulic and electrical circuit diagrams anchor the back of the book, tracing driving, steering, brake, working and auxiliary hydraulics down to individual plug and contact assignments. Repair procedures claim the largest share by far, carrying you through engine removal, load arm and center joint work, axles, brakes, and cab, each job ending in a verified spec. Set the driving hydraulics to 450 bar working pressure and pull wheel nuts to 150 Nm before the machine rolls again. Guess a pressure wrong and you buy the pump twice. Bookmarked and text-searchable, the file rides along on whatever screen is closest to the loader.
What's Inside This Weidemann 1150 CX30 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 17-36 | - |
| Technical Data, Testing Equipment and Special Tools | 37-70 | Technical Data, Filling Quantities, Tightening Torques, Pressure Values, Flow Rates, Safety Stickers, Testing Equipment, Special Tools |
| Inspections, Maintenance Work and Troubleshooting | 71-114 | - |
| Complete Vehicle | 115-124 | Helpful Tips, Protective Stickers |
| Engine | 125-154 | Engine Removal, Engine Installation, Rubber Buffers, Radiator, Air Filter System, Fuel System, Exhaust System |
| Hydraulic System | 155-198 | Depressurizing, Hydraulic Cylinder, Driving Hydraulics, Steering Hydraulics, Brake Hydraulics, Working Hydraulics, Auxiliary Hydraulics |
| Drive and Axles | 199-218 | Drive Shaft, Front Axle, Rear Axle, PTO Gear, Axle Shaft Bearing |
| Brake System (Mechanical Section) | 219-226 | Service Brake, Brake Drum, Brake Shoes, Parking Brake, Bowden Cable |
| Vehicle Frame and Load Arm | 227-252 | Front Carriage, Rear Carriage, Center Joint, Step Plate, Load Arm, Tool Attachment |
| Operator's Platform and Cab | 253-260 | Driver's Seat, Seat Belt, ROPS Bar, Steering Column, Steering Wheel |
| Electrical System | 261-286 | Generator, Starter, Switches, Sensors, Relays, Indicator Lamps, Lighting System |
| Circuit Diagrams and Technical Descriptions | 287-322 | Hydraulic Circuit Diagram, Electrical Circuit Diagram, Plug Assignments Contact Assignments, Technical Description |
| Supplier Service Manuals | 323-336 | Engine Workshop Manual, Variable Displ. Pump Repair Instructions, Fixed Displacement Motor Repair Instructions |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Wheel nut | 150 Nm | p. 47 |
| Hooked bolt nut | 150 Nm | p. 47 |
| Driving hydraulics working pressure | 450 bar | p. 43 |
| Working hydraulics primary pressure | 205 bar | p. 43 |
| Engine oil with filter capacity | 4 L | p. 45 |
| Generator charging voltage | 14.4 V | p. 43 |
| Generator maximum capacity | 40 A | p. 43 |
| Engine Output | 18.5 kW / 25 HP | p. 43 |
| Engine Capacity | 1,131 cm3 | p. 43 |
| Steering Hydraulics Working Pressure | 175 bar | p. 43 |
| Fuel Tank Capacity | 21 l | p. 45 |
| Hydraulic Fluid Tank Capacity | 8 l | p. 45 |
Weidemann 1150 CX30 Common Problems This Manual Covers
Weidemann 1150 CX30 lift arms slow and weak, bucket cylinders won't reach full height under load
Check working hydraulics primary pressure first. Tee a gauge into the loader valve test port and stall a bucket cylinder; you want 205 bar per the technical data on page 43. If pressure checks out but the arms still crawl, verify the hydraulic tank is full (8 l capacity) and work through the Hydraulic System chapter starting on page 155.
Manual Section: Hydraulic System TroubleshootingEngine cranks but won't start, or loses power and dies when pressed hard
Check fuel supply first: drain water from the fuel filter and confirm the 21 l tank isn't sucking air near empty. Bleed the fuel system, then pull the air filter element and inspect for plugging. If it still won't fire, run the engine troubleshooting charts in the maintenance section beginning on page 71.
Manual Section: Engine TroubleshootingLoader creeps or won't move at all, drive feels weak climbing grades with full bucket
Test driving hydraulics pressure at the variable displacement pump; spec is 450 bar working pressure per the technical data on page 43. Check inching pedal adjustment and pressure cut-off using the procedures in the maintenance section starting on page 71. Low pressure usually points to a plugged suction line or worn pump.
Manual Section: Drive TroubleshootingSteering wheel hard to turn or wanders, articulation joint knocks when cycling the bucket
Measure steering pressure with a gauge following the procedure on page 95; the setpoint is 175 bar. Adjust the relief valve if it reads low. For the knock, block the machine, rack the articulation joint with a bar, and check center joint bearing play using the Vehicle Frame and Load Arm chapter starting on page 227.
Manual Section: Hydraulic System Inspection and Maintenance p. 95Battery goes flat overnight, charge lamp flickers, alternator not keeping up at idle
Test generator output at the battery with the engine at working speed; you should see 14.4 V charging voltage from the 40 A generator (specs on page 43). Check belt tension and clean the ground connections before condemning the unit. Generator removal and test procedures are in the Electrical System chapter beginning on page 261.
Manual Section: Electrical System p. 261Wheel wobble or clunk from front axle after tire service or heavy loading cycles
Torque all wheel nuts to 150 Nm per page 47, then recheck them after a few hours of work. If the clunk stays, jack the axle, check axle shaft bearing play, and drain the front axle transmission oil looking for metal; refill capacity is 2.5 l. Axle repair procedures start on page 199.
Manual Section: Drive and Axles p. 199Frequently Asked Questions
What are the torque specifications for the wheel nuts on the Weidemann 1150 CX30?
The tightening torque for the wheel nuts on the Weidemann 1150 CX30 is 150 Nm. This applies to both standard wheels and twin tires. p. 47
What is the valve play specification for the Weidemann 1150 CX30 engine?
The valve play for both inlet and outlet valves on the engine is 0.2 mm when the engine is cold. p. 79
What is the fuel tank capacity for the Weidemann 1150 CX30?
The fuel tank capacity for the Weidemann 1150 CX30 is 21 liters. p. 45
What is the tightening torque for M16 bolts with a quality of 10.9 on the Weidemann 1150 CX30?
For M16 bolts with a quality of 10.9, the tightening torque is 290 Nm, assuming the surface is untreated and unlubricated. p. 47
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