D. Twist and pull out the carbon brush assembly.
E. Reverse the above procedure to replace the brush assembly.
8. To check and replace GTC-540 carbon brushes:
A. Pry off motor cover.
B. Remove 2 screws holding down each brush assembly.
C. Replace brush assembly and reassemble.
TROUBLESHOOTING
Loss of Power:
1. Check that power cord is plugged in.
2. Check fuse or circuit breaker.
3. Check cord for breaks or loose contacts.
4. Check switch.
5. Check carbon brushes.
Loss of Suction:
1. Check for clogged filters.
2. Check hose and tools for obstructions or holes.
3. Check vacuum intake for clogging.
4. Check that tank is not too full.
5. Check drum for smooth, even top for proper vacuum seal.
6. Check vacuum lid or drum adapter sealing ring.
7. Check drum for holes or leaks.
AIR VACUUMS
OPERATING INSTRUCTIONS
1. A clean, dry supply of air at a minimum of 50 PSI (3.5 BAR) and
35 CFM (1 m
3
obtained at 70-80 PSI (4.8-5.5 BAR) and 45 CFM (1.3 m
WARNING: Unrestricted compressed air hoses can whip, causing personal
injury and equipment damage.
4
/min) is required for operation. Maximum performance is
/min).
3