Maintenance - Delco 2000 - 4 NG 091 Operator's Manual

CAUTION:
To prevent damage to your new cleaner:
1. Do not pump acids.
2. Do not allow the pump to run dry.
3. Do not fail to winterize.
9. Following the hot water wash, turn the control switch to position one. Allow the unit to run and ad-
equately cool down the heat exchanger. This period of time maybe spent on a cold water rinse.
10. Turn the control switch to position zero "OFF". Turn the water supply off and disconnect. Disconnect the
pressure hose, then drain.

MAINTENANCE

1. Use a water softener on your water system if it is known to be high in mineral content.
2. Use only high quality Delco chemicals and follow the manufacturer's mixing instructions.
3. The cleaner should be flushed thoroughly after using the chemical solutions.
4. Follow the fuel specifications as outlined in the machine specifications.
5. Clean the strainer screen, in the hose connection at the float tank, periodically.
6. Pump lubricant: Periodically check the oil level. Change the oil after 50 hours of operation, and then
after every 500 hours. Use SAE 30 weight non detergent oil.
7. Use teflon tape or approved sealer on the plumbing connections when reassembling to prevent leakage.
CAUTION: If the machine is to be out of service for a long period of time, we recommend that the
system be flushed out with anti-freeze water solution. Do not run the pump dry for ex-
tended periods of time or severe damage will occur.
8. Deliming coils: Periodic flushing of the coils is recommended to extend coil life and prevent lime build
up. See note on page 11.
How To Check The Oil
It is critical that the oil in your pump be checked regularly. To check the oil follow this procedure:
1. Locate the oil dipstick in the plug on the top of the pump.
2. Turn the oil plug counterclockwise.
3. Wipe the dipstick with a clean cloth.
4. Screw the dipstick in. Pull it back out and check for the oil level mark. The oil level should be at the top
mark.
5. If the oil is below the notch, add SAE 30 weight, non-detergent oil.
6. Put the dipstick back into the hole.
7. Turn the plug clockwise until it stops.
Page 14 3000-4, 2000-5 NG/LP