Functional Check After Repair - WAGNER Cobra 40-10 Translation Of The Original Operating Manual

VERSION 07/2014
OPERATING MANUAL
11

FUNCTIONAL CHECK AFTER REPAIR

After all repairs, the device must be checked for safe condition before recommissioning.
The necessary scope of inspection and testing depends on the repair carried out and must
be documented by the repair staff .
Activities
1.1 Piston Travel
- It must be possible to move the piston rod on both sides until the button stop
with a pre-assembled pressure stage. Balancing bore must be complet3ely
open in the respective end position (visual inspection). (see Chapter 14.4
or 14.7)
1.2 Oil fi lling
- Mount pressure and fl uid section on frame. Push piston into air motor-side
end position. Fill pre-assembled pump with oil via fi lling port until oil is visible
in the oil container. Push piston into the opposite end position. Fill pump further
with oil until just below end of oil container inspection window (see Chapter 8.2.6).
1.3 EX-relevant inspections
- Check mass connection between earthing connection of the pump and the fra-
me/trolley and between the individual components of the frame/trolley: <100kΩ
- Check conductivity between the piston and the earthing connection: <100kΩ
!! These inspections are
1.4 Testing for Leaks
- Connect the air motor to the air supply 6 bar. To perform a leak test on the
device, the product pressure with the fl ushing agent is slowly increased in in-
crements until the maximum pressure indicated on the type plate is reached.
Close pump outlet. Allow to stand in this position for 0.5-1 minute and listen for
audible blowing off . Close air-supply ball-valve without relieving and check for
pressure-loss.
Check seal of following modules:
Flange seal
- Ball valve (in all positions)
- Pressure stage
- Fluid section
ORDER NUMBER DOC2340851
- relevant!!
Aid tools
Manual inspection
Oil fi lling unit
Ohmmeter
Air motor:
Test medium compressed
air
Leak spray
Fluid section:
Test medium: suitable
fl ushing agent
51