American-Lincoln SR9772 510-015, Instructions For Use Manual

Page: 35 / 91

1-34 American Lincoln
SR9772
PROBLEM
PROBABLE CAUSE
REMEDY
Poor scrubbing action
1. Worn scrubbing brushes
2. Incorrect method of operation
3. Wrong cleaning agent or mixture
4. Poor scrubbing distribution
5. Low engine rpm
6. Hydraulic system
7. Hydraulic Drive
1. Inspect brushes. If brushes are worn
to ½" or less, replace all 4 brushes
2. Check scrubbing procedure, brush
pressure, type of brush solution flow &
cleaning chemical used. For extreme
conditions double scrubbing may be
necessary.
3. Use A-L recommended materials.
4. Clean out distribution tube & metering
holes to brushes. Check feed hose &
clean if necessary. Check valve &
solution control system.
5. Check rpm.
6. See "hydraulic system" troubleshooting
7. Check motors to see if worn or
damaged.
Poor solution pick up
1. Clogged suction hoses or pick up tools
2. Loose connections between suction hose &
squeegee or between manifold & turbine inlet.
3. Vacuum turbine not operating
4. Vacuum float shut off
5. Drain plug missing or drain door leakage or
not properly closed.
1. Disconnect suction hose from
squeegee, flush squeegee & hoses.
2. Check all hose connections for
looseness or damage.
3. Check all air discharge at turbine muffler
Check for slipping or broken drive belt.
4. Excessive solution recovery, drain tank.
Excessive foam build up, change
cleaning chemical mixture.
5. Close, repair, or replace.
TROUBLESHOOTING - SCRUBBING SYSTEM
Splash control 1. Brush drive splash skirts - more than 1/8"
from floor
2. Splash skirts worn
3. Too much solution being applied
1. Readjust to 1/8" clearance.
2. Replace & adjust.
3. Readjust solution flow.
Brush wear 1. Lift chain(s) not adjusted properly.
2. Brush housing sections binding with linkage
3. Counterbalance spring bias pressure.
1. Inspect for slack with brushes down.
Adjust as necessary.
2. Check and repair.
3. Readjust or replace springs for required
pressure.
TROUBLESHOOTING - SCRUBBING SYSTEMS