Minuteman C8420-115_C8420-240 Ambassador 20 - Manual (Page 22)

Parts and Instruction Manual
Page 19
Use this guide to pinpoint problem areas that may arise with the use of your Ambassador 20.
CAUTION! Unplug supply cord before servicing machine components.
I. No water dispensed from spray jets
A. The hose connection at the pump for the spray tube may not be tight. Disconnect, then
reconnect the fitting, to ensure the fittings snap together securely.
B. The solution pump diaphragm may be damaged. Inspect by removing the diaphragm
from the pump and inspect the diaphragm for cracks. Replace if required.
II. Spray intermittent or streaked
A. Solution hoses may be clogged. Replaced kinked hoses if found.
B. The filter strainer in the solution tank may be clogged. Clean the strainer thoroughly.
C. The spray jets may be clogged. Remove the end plug from the spray tube and flush by
turning the pump on. Remove the spray jets from the tube and clean as required. Do
not clean out the hole in the jet with a pin or wire. This may cause permanent streaking.
I. Solution recovery is reduced.
A. Vacuum filter maybe clogged. First check filter recovery tank. Clean if required.
B. Check the vacuum hoses for secure fit over the vacuum fittings. Tighten clamps where
used. Also check hoses for cracks, kinks or clogging.
C. Check the seals on the tank covers for damage. Replace if needed. Make sure cover
closes freely without restrictions.
D. Make sure the drain hose on the back of the tank is sealed.
E. Check the vacuum slot on the scrub head for clogging. Clean out the slot if required.
F. Vacuum motor brushes could be worn. Inspect and replace. If motor has run through
two sets of brushes, replace the motor.
Trouble Shooting Guide
Solution Recovery
Solution System