Ega Master 79919 Manuel D'instructions page 45

Connection Diagram
If the hose connections are mixed up: Machine doesn't work!
Do not disassemble the tool until you know whether the problem is in the hydraulic power
supply, the
gearbox module, or the power and control (rear) module. Then only disassemble the tool as
necessary to repair as required. Keep contaminants such as dirt and grit away from the internal
parts at all times.
Always determine and correct the cause of the problem prior to re-assemble. Further wear
and tool failure can result, if the original cause is not corrected.
Isolate the service problem to the circuit or one of the modules before separating the referring
modules. The "Troubleshooting" section of the operation manual contains information to help
isolating the problem.
Prior to disassembly
Clean the exterior of the tool.
Make sure to have all new seals so they can be replaced during reassembly. Note the
orientation of seals
before removal. Install new seals in the same position as the original seals.
Note: For orientation of the parts identified in the following procedures, refer to the sectional
drawing and parts list located at the end of this manual.
Spare Parts
Only original spare parts may be used. There is no warranty for damages and liability is
disclaimed, if non original spare parts and accessories are used.
Motor
Switch valve right - left
Pressure control valve for torque reduction
Switch valve
45