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Maintenance (expert)
Cleaning and maintenance
2.6.9
Check the drive chains
Checking the grate's drive chain
Check the chain tension. The chain may sag by 1 cm
without any force applied. Tension the chain by shifting
the motor. Lubricate the drive chain with chain spray.
Fig. 2-64: Grate drive chain
Checking the de-ashing drive chain
Check the chain tension. The chain may sag by 1 cm
without any force applied. Tension the chain by shifting
the motor. Lubricate the drive chain with chain spray.
Fig. 2-65: De-ashing the drive chain
2.6.10
Check air valve
Checking the air valve for primary and secondary
air
Actuate both actuators manually and check that they
move smoothly.
Fig. 2-66: Actuator for primary air
Fig. 2-67: Actuator for secondary air
For manual actuation, push the unlocking device (red
button) and turn the drive 90° with the locking screw.
Fig. 2-68: Manually actuating the actuator
Lubricate the air valves only with dry lubricant
(e.g. PTFE spray) if they are difficult to move.
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