Func, 26 english, Maintenance procedures – Robinair 17801B Recovery, Recycling, Recharging Unit User Manual
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© Bosch Automotive Service Solutions LLC
26
ENGLISH
CONFIRMING THE SCALE CHECKLIST
Blank Display or No Warnings
Check the wire connections from the scale assembly to the circuit board for
configuration and continuity.
Verify the circuit board is receiving the correct voltage (refer to the decal on the back
of the unit), and the two amp or 1/2 amp fuse is not blown. Use correctly grounded,
active, electrical outlets only. Replace the circuit board or fuses as needed.
Total Amounts Not Accurate
Verify that nothing is touching, blocking, or interfering in any way with the scale
assembly, tank, or hoses. Confirm that the total weight on the scale assembly is not
exceeding 80 lb/37 kg. If it is, reduce the amount of refrigerant in the tank.
Full (Full Tank Setting)
The compressor will shut off at the weight previously set. To check the weight of
the tank, scale, and refrigerant being recovered, follow the appropriate sections
found under Using the Diagnostic Mode.
CORRECT WEIGHT VERIFICATION
1. Turn on the
MAIN POWER switch.
2. Press
SHIFT/RESET until “PROGRAM” displays.
NOTE: If the unit is just being turned on, the screen will default to display the
selected refrigerant type. Press
SHIFT/RESET until “PROGRAM” displays.
3. When the “PROGRAM” message displays, press and hold
SHIFT/RESET,
then press
ENTER. The “FUNC” message will display when the manual
diagnostic mode has been accessed correctly.
4. Remove all weight from the scale platform.
5. Press
6 to turn the scale into a direct-reading weight scale.
NOTE: Any weight on the scale when 6 is pressed will not be shown on the
display. The unit automatically zeros the weight on the scale when
6 is pressed. If
you remove the weight, the display will show the change in total weight, but will
not show a negative sign.
6. Place a known weight of between 30-60 lbs./13-28 kg on the scale. The
display will show the known weight “± .04lb./.02 kg.”
Maintenance Procedures
NOTE:
Check the scale
accuracy every
three months.
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