A variable displacement pump that won't build pressure can keep a loader parked for days if you're diagnosing it blind. This Weidemann 3070 CX60, 3070 CX80 repair manual PDF is the factory workshop book for both wheel loader variants: 494 pages under OEM ID 1000245278, running from engine removal to telescopic arm rebuilds. Wiring diagrams fill a long stretch of the electrical section, mapping every switch, sensor, relay and fuse, while hydraulic schematics trace the driving, steering, brake and working circuits. Troubleshooting tables walk you through hydraulic pressure and battery voltage checks with a measurable result at each step. Set steering pressure to the 190 bar setpoint, hold primary pressure at 230 bar, and torque wheel nuts to 285 Nm. Guesswork at the articulation joint gets expensive fast. Bookmarked and text-searchable, the PDF goes wherever the machine is, shop bay or job site.
What's Inside This Weidemann 3070 CX60, 3070 CX80 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 21-42 | Repair Work, Engine, Hydraulic System, Drive and Axles, Operator's Platform and Cab, Brake System, Vehicle Frame and Load Arm, Electrical System |
| Technical Data, Testing Equipment and Special Tools | 43-78 | Technical Data, Filling Quantities, Tightening Torques, Pressure Values (20 Km/H Version, Km/H Version), Flow Rates (20 Km/H Version, Safety Stickers |
| Inspections, Maintenance Work and Troubleshooting | 79-130 | Complete Vehicle (Inspection Log for Deutz Engine, Telescopic Arm Inspection Log) |
| Complete Vehicle | 131-140 | Helpful Tips, Protective Stickers |
| Engine | 141-174 | Engine Removal, Engine Installation, Radiator, Air Filter System, Fuel System, Exhaust System |
| Hydraulic System | 175-246 | Depressurizing, Hydraulic Cylinder, Driving Hydraulics, Steering Hydraulics, Brake Hydraulics, Working Hydraulics |
| Drive and Axles | 247-258 | Drive Shaft, Front Axle, Rear Axle |
| Brake System (Mechanical Section) | 259-262 | Service Brake, Parking Brake |
| Vehicle Frame and Load Arm | 263-316 | Front Carriage, Rear Carriage, Center Joint, Load Arm, Telescopic Arm, Tool Attachment |
| Operator's Platform and Cab | 317-352 | Seat, Frame, Windows, Steering Column, Heater, Air-Conditioning Unit, Cab Lift Hydraulic |
| Electrical System and Attachments | 353-494 | Generator, Starter, Switches, Sensors, Relays, Fuses, Indicator Lamps, Earth Bucket |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Rear axle securing | 360 Nm | p. 53 |
| Wheel nut | 285 Nm | p. 53 |
| Steering pressure setpoint | 190 bar | p. 103 |
| Primary pressure setpoint | 230 bar | p. 106 |
| Battery voltage at idling speed | 14 V | p. 123 |
| Battery voltage at idling speed with headlamps on | 13.8 V | p. 123 |
| Engine Oil Capacity | 10.5L | p. 51 |
| Cooling System Capacity | 10.0L | p. 51 |
| Hydraulic Fluid Tank Capacity | 80.0L | p. 51 |
| Wheel Nut Tightening Torque | 285 Nm | p. 53 |
| 3070 CX60 | ||
| Engine Output (3070 CX60) | 45 kW / 60 HP | p. 49 |
| 3070 CX80 | ||
| Engine Output (3070 CX80) | 58.0 kW / 78 HP | p. 49 |
Weidemann 3070 CX60, 3070 CX80 Common Problems This Manual Covers
Weidemann 3070 wheel loader engine cranks slowly in cold weather, sometimes will not start at all
Check battery charge and terminal condition before condemning the starter; load-test the 77 Ah battery listed on page 49. With the engine running, measure charging voltage: 14 V at idle per page 123, 13.8 V with headlamps on. If cranking is still slow, inspect the starter cables and grounds for corrosion and voltage drop.
Manual Section: Engine Troubleshooting p. 123Working hydraulics weak, bucket cylinders stall before full lift height with a rated load
Connect a pressure gauge to the loader valve and cycle the bucket cylinders against their stops. Verify primary pressure hits the 230 bar setpoint shown on page 106, then check the lift secondary valve at 250 bar per page 107. Adjust or replace the relief cartridge if either reading comes up short.
Manual Section: Hydraulic System Troubleshooting p. 106Steering turns hard at idle, gets worse with the bucket loaded and engine warm
Test steering hydraulics pressure with the wheels turned against full lock. You should see the 190 bar setpoint from page 103; anything lower points to the steering relief valve or a worn pump. Check hydraulic oil level first, then inspect the articulation joint and steering cylinder pins for binding before opening the circuit.
Manual Section: Hydraulic System p. 103Lift arms drift down overnight, tool attachment slowly curls forward with the engine off
Measure cylinder drift with a loaded bucket held just off the ground and the engine off. Lifting cylinder leakage should run about 1.5 mm/min and the tipping cylinder about 2 mm/min per the values on page 110. Anything past 12 cm3/min internal leakage on a hydraulically operated valve means replacing the valve section, not the cylinder seals.
Manual Section: Hydraulic System Troubleshooting p. 110Wheel nuts keep working loose, vibration felt through the frame at transport speed
Torque wheel nuts to 285 Nm using the specification on page 53 and recheck after the first few hours of operation. Inspect wheel studs and mating faces for damage or paint buildup before reinstalling. While you have the torque wrench out, verify the rear axle securing bolts at 360 Nm from the same chart.
Manual Section: Technical Data, Testing Equipment and Special Tools p. 53Frequently Asked Questions
What is the torque specification for the wheel nuts on the 3070 CX60 / CX80?
The tightening torque for the wheel nuts on the 3070 CX60 / CX80 is 285 Nm. p. 53
What is the capacity of the fuel tank for the 3070 CX60 / CX80?
The fuel tank capacity for the 3070 CX60 / CX80 is 90.0 liters. p. 51
What is the Deutz engine valve play specification on the Weidemann 3070 CX60 / CX80?
For the Deutz engine, the inlet valve play is 0.3 ± 0.05 mm and the outlet valve play is 0.5 ± 0.05 mm. p. 87
What is the Deutz engine cylinder head cover tightening torque on the Weidemann 3070 CX60 / CX80?
The tightening torque for the cylinder head cover on the Deutz engine is 8.5 Nm. p. 53
What is the operating voltage and battery capacity for the 3070 CX60 / CX80?
The loader operates at 12 V and is equipped with a 77 Ah battery. p. 49
What do I get after purchasing this Weidemann 3070 CX60 manual?
Instant PDF download. You get the full 494-page searchable Repair Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Does this Weidemann 3070 CX60 manual allow printing?
Yes. The PDF is DRM-free, so printing works from any reader and any printer.
Reviews
There are no reviews yet.