Aerzen Blower GM20L

Performing checks after commissioning — After the first 3 operating hours

Re-tighten screws if necessary after the machine has cooled down

Check intake pressure valve for correct operation

Check oil level and correct if necessary

Check and align the sheaves, correct if necessary

Check condition of the belts, change if necessary, establish cause

Check control system, fault transmitter, pressure and temperature sensors for correct operation

Ensure motor overload protection is connected and active

Check for accumulation of preservative oil and remove if necessary

Checking the inlet and exhaust air openings on the acoustic hood

Visual inspection of the supply air and exhaust air openings on the acoustic hood

Clean the openings. Remove dirt

Check the direction of flow in the operating position with a closed acoustic hood. Observe the information in the installation drawing

Is exhaust air extracted from the acoustic hood?

Open the maintenance elements of the acoustic hood

Loosen the screws for attaching the fan

Loosen the fastening screws and lightly impact the flange cover to loosen the sealing.

Remove the non-return flap from the housing.

Carry out a visual inspection of the non-return flap.

Remove dirt, grease, and used sealing agent from the flange surface.

Apply sealing agent to the flange surface of the housing.

Guide the non-return flap into the housing and remove any bleeding sealing agent.

8.2.1 Maintenance schedule for normal operation

Gas-Tight Drive Shaft Grease Replacement

Check if the machine has a gas-tight shaft seal (optional)

Change the grease on the gas-tight drive shaft

Reference Chapter 8.3.4 'Replacing the grease on gas-tight drive shafts' on page 149 for detailed instructions

Follow the full grease pressing procedure as described in Initial 500 Hours Gas-Tight Drive Shaft Grease Lubrication

Ensure service personnel are available for the procedure

Maintenance schedule for normal operation

After every 16,000 operational hours or every 2 years

Chapter 8.3.16 'Checking pipelines for tightness' on page 166

Check flexible pipe connections for tightness

Check flexible pipe connections on the discharge and intake sides for tightness

Is replacement of flexible pipe connections necessary?

Checking intake-side pipelines for tightness

Check pipelines for tightness (visual inspection)