Frymaster M2000 User Manual
Page 25
Scratch calibrate fry vats (gas fryers only)
Annually
FR 2 A1-T
©McDonald’s Corporation · Planned Maintenance Manual · Revised June 2008
Page 1 of 1
Frymast
er Frye
r All m
od
els
usi
ng
an M
20
00
Com
puter
QUALIFIED T
ECH
NICIA
N
S
ONLY
Annually
FR 2 A1-T
Why
To ensure proper cooking temperatures
Time required
45 minutes to prepare
20 minutes to complete
Time of day
At close
For 24-hour restaurants: during low-volume periods or
at night
Hazard icons
Tools and supplies
Tools supplied by
technician
Procedure
QUALIFIED TECHNICIANS ONLY
1
Check regulated gas pressure.
Contact the local gas company or a service agency to
check the gas pressure out of the fryer’s gas regulator.
For natural gas, the pressure must be 3.0 in. W.C.
(76 mm W.C.) For propane gas, the pressure must be
8.25 in. W.C. (210 mm W.C.)
If the pressure does not meet these standards, ask the
service agency or gas company to adjust the pressure to
meet the standard.
2
Clean and Replace gas valve vent tube.
Clean and replace the gas valve vent tube. Follow the
cleaning procedure in the service manual.
3
Clean combustion air blower.
Clean the combustion air blowers. Follow the cleaning
procedure in the service manual.
4
Check fryer recovery time.
Choose a vat on the fryer. Check the fryer’s most re-
cent recovery time for that vat, using the procedure in
FR2 M1. The most recent recovery time should be less
than 145 seconds.
If the fryer’s recovery time is less than 145 seconds,
the procedure is complete for this vat. Go to step 7.
5
Check combustion.
If the fryer’s recovery time is less than 145 seconds,
skip this step.
Connect the multimeter in series with the white flame
sensor wire on the igniter. Allow the burner to operate
for at least one minute after the melt cycle is com-
pleted. After 1 minute, the reading on the multimeter
should between 2.5 and 3.5 microamps. Any other
reading is not acceptable.
After 90 seconds of continuous operation, check the
color of the burner. The burner should glow bright or-
ange-red. Use the Burner Color Comparison Chart
inside the door of the fryer to identify the correct color.
A blue flame or dark spots on the burner face are not
acceptable.