Tweco QRC-2000 - Manual (Page 20)

nozzle cleaning station
6-18 SM-QRC-2000 tRoubleShooting
SECTION 6:
TROUBLESHOOTING
Problem Cause Solution
LED signals not activating
1. The unit is not receiving power. 1. Turn power on.
2. The unit is not getting air. 2. Turn air on.
3. Input voltage is incorrect. 3. Check input voltage and change if
required.
Reamer Blade/Air Motor stops
during operation (see also
Pneumatic functions not operating
properly)
1. Cutter feed rate is too fast. 1. Reduce cutter feed rate (see
section 3.10).
2. Excessive spatter buildup. 2. Clean affected area and adjust weld
parameters. Apply or increase
anti-spatter. Clean more often.
3. Incorrect air supply. 3. Adjust air supply (See section
3.03).
Pneumatic functions not operating
properly
1. Incorrect air supply. 1. Adjust air supply (see section
3.03).
2. Air line damage or obstructed and
air leaks.
2. Check lines for leaks and replace
hose if damaged.
3. Faulty reset switch. 3. Repair or replace reset switch.
Broken Reamer Blade
1. Wrong size reamer blade or clamp
block.
1. Check sizing (see section 3.08).
2. Reamer blade feed rate was set
too high.
2. Reduce cutter feed rate. (see
section 3.10).
3. Excessive spatter buildup. 3. Clean affected area and adjust weld
parameters. Apply or increase
anti-spatter. Clean more often.
Reamer Blade stays in down position
1. Damaged lift cylinder or air lines. 1. Reset switch defective.
2. Faulty or contaminated lift solenoid. 2. Check solenoid valves. Fix or
replace faulty solenoid.
3. Reset switch defective. 3. Replace reset switch.
4. Damaged limit switch. 4. Identify and replace faulty
switch.
Reamer Blade stays in up position
1. Reamer Blade is jammed. 1. Press Reset button and Inspect
Reamer Blade.
2. Faulty air solenoid. 2. Replace air solenoid.
3. Bad or dirty lift cylinder. 3. Fix or replace cylinder.
4. Cycle start signal held on. 4. Adjust cleaning cycle program.
5. Faulty limit switch. 5. Replace limit switch.
Cycle complete signal does not
activate
1. Faulty limit switch on lift cylinder
or clamping cylinder.
1. R e p l a c e o r r e a l i g n r e a d
switch(es).
2. Unit is not wired correctly. 2. Check wiring (see section 4).