Cooling Fan And Cooling Fan Switch - Check And Renewal - Yamaha TDM850 User Manual

4.3a Fan motor wiring connector (arrowed) - TDM models
4 Cooling fan and cooling fan §|
switch - check and renewal
Cooling fan
Check
1 If the engine is overheating and the cooling fan
isn't coming on, first check the fan circuit fuse
(see Chapter 9) and then the fan switch as
described in Steps 9 to 13 below.
4.5 Fan assembly mounting bolts
(arrowed)
4.9b Fan switch wiring connector (A),
temperature sender wiring connector (B) -
TRX models
2 If the fan does not come on, (and the fan
switch is good), the fault lies in either the cooling
S
K
fan motor or the relevant wiring. Test all the
wiring and connections as described in Chapter
9.
3 To test the cooling fan motor, trace the fan
motor wiring and disconnect it at the connector
(see illustrations). Remove the fuel tank and on
TDM and TRX the air filter housing for best
access. Using a 12 volt battery and two jumper
wires, connect the battery leads to the fan wiring
connector. Once connected the fan should
operate. If it
4.9a Fan switch wiring connector (A),
temperature sender wiring connector (B) -
TDM models
Mb 1
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4.9c Fan switch wiring connector (A),
temperature sender wiring connector (B) -
XTZ models
4.3b Fan motor wiring connector (arrowed) - XTZ models
does not, and the wiring is all good, then the
fan is faulty.
Renewal
A
Warning: The engine must be
completely cool before carrying out
this procedure.
4 Remove the radiator (see Section 7).
5 Unscrew the three bolts securing the fan
shroud and fan assembly to the radiator (see
illustration).
unscrew the bolts on the front of the fan
securing it to the shroud and remove the
shroud. Separate
motor and renew the motor. On XTZ models,
individual components are not available and
the entire fan assembly must be renewed.
6 Installation is the reverse of removal.
7 Install the radiator (see Section 7).
Cooling fan switch
Check
8 If the engine is overheating and the cooling
fan isn't coming on, first check the fan circuit
fuse (see Chapter 9). If the fuse is blown,
check the fan circuit for a short to earth (see
the wiring diagrams at the end of this book).
9 If the fuse is good, on TDM and TRX
models, remove the fuel tank and air filter
housing (see Chapter 4). On XTZ models,
remove the left-hand fairing side panel (see
Chapter 8). Disconnect the wiring connectorfs)
from the fan switch, mounted in the thermostat
housing (see illustrations). Using a jumper
wire, connect between the terminals in the
wiring connectorfs). The fan should come on. If
it does, the fan switch is defective and must be
renewed. If it does not come on, the fan
should be tested (see Step 3).
10 If the fan is on the whole time, disconnect
the wiring connector. The fan should stop. If it
does, the fan switch is defective and must be
renewed. If
between the fan switch and the fan motor,
and the fan itself.
11 If the fan works but is suspected of
Cooling system 3*3
On TDM and TRX models,
the fan blade from the
it doesn't, check the wiring
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