American-Lincoln
®
1-37
SR7770 HCOperator’s Manual
GENERAL TROUBLESHOOTING
PROBLEM
PROBABLE CAUSE
REMEDY
1. Examine squeegee rubber blade for
cuts or worn spots.
2. Repair or replace hose and connection
3. Repair or replace gaskets
4. Check vacuum motor
5. Check seal on recovery tank
6. Close, repair or replace drain plug in
recovery tank.
Lack or suction at rear
1. Clogged suction hose or pick up tool
2. Loose connections between suction hose
and squeegee or between hoses or
manifold inlet.
3. Vacuum motor not operating
4. Vacuum float cage clogged
5. Vacuum float shut off
Poor water pick up at
squeegee
1. Side or rear squeegee are worn or damaged
2. Clogging in water pick up
3. Air leaks in suction hose and connection
4. Air leaks at recovery tank cover and/or
manifold gaskets
5. Poor vacuum
6. Drain hose or drain plug leakage or not
closed properly..
Water spill from squeegee
1. Side squeegee blades, poor contact with
floor
2. Squeegee blades worn or damages
3. Too much solution being applied before
making turns
4. Brushes rotating opposite direction
1. Readjust blades for proper contact
2. Replace or adjust
3. Shut off solution flow 5' to 10'
4. Check position of switches.
1. Disconnect suction hose from
squeegee; flush squeegee & hoses.
2. Check all hose connections for
looseness or damage.
3. Check hydraulic motor in recovery
4. Clean perforated metal thoroughly
5. Excessive solution in recovery drain
tank. Excessive foam build up,
change cleaning chemical mixture.
Use A-L approved materials.
Summary of Contents for Alto SR7770HC
Page 42: ...1 40 American Lincoln SR7770 HCOperator s Manual NOTES ...
Page 45: ...American Lincoln 2 3 SR7770HC FRONT TANK EXPLODED VIEW C2127 0602 ...
Page 47: ...American Lincoln 2 5 SR7770HC SCRUB DECK 60 EXPLODED VIEW C2130 0702 ...
Page 55: ...American Lincoln 2 13 SR7770HC SQUEEGEE LIFT EXPLODED VIEW C0927a 0702 ...
Page 57: ...American Lincoln 2 15 SR7770HC SWING SQUEEGEE SUPPORT EXPLODED VIEW C2135 0702 ...
Page 59: ...American Lincoln 2 17 SR7770HC NO GLUE SOLUTION TANK EXPLODED VIEW C2134 0702 ...
Page 61: ...American Lincoln 2 19 SR7770HC C2133 0802 SOLUTION CONTROL GROUP EXPLODED VIEW ...
Page 67: ...American Lincoln 2 25 SR7770HC RECOVERY TANK EXPLODED VIEW C2129 0702 ...
Page 71: ...American Lincoln 2 29 SR7770HC REAR WHEEL EXPLODED VIEW c0928a 0702 ...
Page 77: ...American Lincoln 2 35 SR7770HC MAIN FRAME EXPLODED VIEW c0938a 0702 ...
Page 79: ...American Lincoln 2 37 SR7770HC DRIVER COMPARTMENT EXPLODED VIEW c0937c 1002 ...
Page 81: ...American Lincoln 2 39 SR7770HC CONSOLE EXPLODED VIEW c0939c 1002 ...
Page 83: ...American Lincoln 2 41 SR7770HC INSTRUMENT PANEL GAS EXPLODED VIEW c0944b 0702 ...
Page 85: ...American Lincoln 2 43 SR7770HC INSTRUMENT PANEL LP EXPLODED VIEW c2181 0702 ...
Page 89: ...American Lincoln 2 47 SR7770HC HYDRAULIC RESERVOIR FILTER FITTINGS EXPLODED VIEW c0952b 1002 ...
Page 97: ...American Lincoln 2 55 SR7770HC HYDRAULIC HOSE SYSTEM EXPLODED VIEW c0941a 0902 ...
Page 99: ...American Lincoln 2 57 SR7770HC HYDRAULIC HOSE SYSTEM EXPLODED VIEW con t c0942a 0902 ...
Page 109: ...American Lincoln 2 67 SR7770HC FORD 425 ENGINE GAS EXPLODED VIEW c2180 0802 ...
Page 111: ...American Lincoln 2 69 SR7770HC FORD 425 ENGINE GAS EXPLODED VIEW 2 c0954b 0902 ...
Page 113: ...American Lincoln 2 71 SR7770HC FORD 425 ENGINE LP EXPLODED VIEW C2136 0802 ...
Page 115: ...American Lincoln 2 73 SR7770HC FORD 425 ENGINE LP EXPLODED VIEW 2 c0955a 0802 ...
Page 120: ...2 78 American Lincoln SR7770HC NOTES ...
Page 127: ...American Lincoln 2 85 SR7770HC HYDRAULIC SCHEMATIC ...
Page 148: ...American Lincoln Technology 3 21 SR7770HC ESP OPTION TANK GROUP EXPLODED VIEW c0951a 0702 ...