TROUBLESHOOTING (Ventilated Face Piece System) (continued)
TEST OR INSPECTION
Step 3. Check to see that VFPS control box switch is on.
If not, turn switch to ON.
Step 4. Check hoses and connectors for damage or kinks.
Remove any kinks if possible. Report any damage to Unit maintenance.
Step 5. Check that spring clip is removed from inlet holes.
If not, remove spring clip.
Step 6. Check that air intake is unobstructed.
If intake is unobstructed, notify Unit maintenance about clogged filters.
Step 7. Listen for fan operation.
If fan is not operating, notify Unit maintenance.
34. HEAT DOES NOT REACH VENTILATED FACE PIECE, BUT AIRFLOW IS NORMAL
Step 1. Check rotary switch on each of four heaters. Make sure rotary switch is
turned fully clockwise on each.
Turn on rotary switch. Power lamp should light.
Step 2. Inspect outlet hose(s) and check for airflow.
If hose(s) is damaged or if airflow is restricted, notify Unit maintenance.
Step 3. Wait a few minutes after completing step 2, then check periodically for warm
airflow. Air should warm within 15 minutes.
If air does not warm, notify Unit maintenance.
35. PRECLEANER DOES NOT OPERATE WHEN SWITCH IS ON
Check to see if vehicle MASTER switch is set to ON.
If not, set vehicle MASTER switch to ON.
If condition persists, notify Unit maintenance.