Yearly maintenance
This section contains tasks that should be performed on a yearly basis. Increase or decrease frequency as
needed for specific operating conditions and use of booth.
NOTE
Once each year, perform these tasks in addition to the monthly maintenance tasks.
If applicable: Inspect and clean an air heater with a standard burner
Scope: Perform this procedure if the air heater has a standard burner. If the air heater has a Low NOx
burner, complete “If applicable: Inspect and clean an air heater with a Low NOx burner” (page 30) instead.
Once each year, perform these tasks in addition to the monthly air heater maintenance tasks.
WARNING
Before servicing, lockout/tagout the air heater, including the main electrical service and the main gas
supply.
CAUTION
Use care when touching the exterior of an operating motor or a motor that has just been shut down. Motors
usually run hot and may be hot enough to be painful or cause injury.
1.
If applicable: Inspect the air heater fan belt for wear; replace any torn or worn belts.
NOTE
For instructions, see “Replace fan belts” (page 39).
2.
Inspect the bolts and screws for tightness. Tighten them as necessary.
3.
Inspect the motor for cleanliness. Remove dirt and grease from the wheel and housing to prevent
imbalance and damage.
a.
Clean exterior surfaces only.
b.
Use a rag to remove dust and grease from the motor housing to ensure proper motor cooling.
c.
Remove dirt and grease from the wheel and housing to prevent imbalance and damage.
4.
Use soapy water or a gas detector to check for bubbles caused by a gas leak. Seal any leaks, if
present.
5.
Clean both sides of the stainless-steel burner plates with a stiff wire brush to remove any soot or other
crud.
NOTE
All of the burner plate holes must be clear so air can pass through them unrestricted.
6.
Inspect the burner plates for cracking. Some cracking between one or two holes is normal. If the
cracking is more extensive, replace the affected plates.
7.
Use the wire brush to remove rust and foreign material from the burner orifice area.
8.
Clean the burner gas and air ports and remove debris; then use compressed air or a vacuum to
remove any debris from the manifold.
Service and maintenance
Global Finishing Solutions
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