Xerox 3050 Service Manual page 118

F G H J K L
Replace the LVPSl DRIVER
1
PWB(A2).
Go t o FLAG 2 and check the
wiring for an open clrcuit In the
wires. If there
is
no open circuit,
replace the Fuser Motor Relay
I
(K4).
Enter the code [I0041 in order t o
energize the Fuser Heat Rod and
increase the Fuser Heat Roll
temperature t o the run temperature.
The message, "1004 FUSER TEMP
TEST TEMP
a
XXX CELSIUS, XXX
FAHRENHEIT", is displayed when the
Heat Roll is at the run temperature.
The Fuser Motor Relay (K4) is
switched on, when the Fuser Roll
reaches the run temperature.
The voltage at A2 P212 pln 10 of the
LVPS/ DRIVER PWB goes LOW when
the Fuser Roll reaches the run
temperature.
Replace the LVPSl DRIVER PWB
I
(m.
Replace the Fuser Motor Relay (K4).
Press Power
Off
(0). Disconnect the Fuser
Drive Motor connector (M22 PI J1). Set
the Multimeter (600T1616) t o ohms,
DC,
+
,200 ohms.
The motor resistance is approximately
16.0 bhms as measured between (M22
J1) pins
1
and
2.
Y N
J K L
1
Replace the Fuser Drive Motor.
?heck the drive system for blnding by
manually rotating the motor shaft.
Rotate the shaft by turning the motor
cooling fan
which is
attached t o the
motor shaft.
If
the system
is
binding,
check the Fuser Heat Roll, the Fabric
Guide and the Pressure Pivot Assembly
for damage.
heck the following items for damage:
Fuser Drlve Pulleys and Drive Belt
Fuser Heat Roll
0
Heat Roll Bearings
Fabric Guide
0
Pressure Pivot Assembly
4/96
4.2 Fuser Drive Motor (W/O Tag/ MOD28) RAP
2-166
3050