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TK 61555-2-MM-EN
35
Fuse
Size
Function
F6
15A
Power to Damper and High Speed Solenoids
F7
2A
Switch On Power to CAN Bus
F8
5A
2A power to CAN Connector J12
F9
5A
2A power to CAN Connector J14
F10
10A
Power to On Relay (Right Position)
Bypass HMI Control of Power (Left Position)
F11
10A
F12
5A
2A power to CAN Connector J13
F13
2A
Power to Remote Lights
F15
P/S
On/Off Relay (Note 3)
F20
2A
Power to Alternator Sense
F25
7.5A
Power to HPCO
F26
5A
Power to REB Board
Notes:
1.
Fuse F4 must be in place for Prestolite alternators to
charge. Fuse F4 must be removed for Bosch and
Thermo King alternators. Service Parts Base
Controllers are shipped without the F4 fuse.
2.
The F5 preheat fuse is a “slow blow” type fuse. It is
designed for use with the engine air pre-heater.
Always replace the fuse with the TK specified fuse.
Service Parts Base Controllers are shipped without
the F5 fuse.
3.
The device identified as F15 is a polyswitch. This
polyswitch provides over-current protection for the
On/Off relay. The polyswitch will reset automatically
and is not field repairable.
Fuse F10
There are three in-line fuse clips that allow for two configurations of the F10 fuse. The right
position is the normal position. This position has a white bar below it on the circuit board. When
fuse F10 is installed in the right position, control power is routed to the K9 On/Off Relay contacts.
The On/Off keys on the HMI Control Panel energize and de-energize the K9 On/Off Relay. When
the K9 On/Off Relay is energized, power is supplied through the normally open K9 contacts to
turn the unit on.
When fuse F10 is installed in the left position, power bypasses the K9 On/Off relay contacts and
the unit will start and run without the HMI Control Panel connected. T
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y.. Do not operate the unit with the F10 fuse installed in the
left position unless absolutely necessary.
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ntt:: If fuse F10 is installed in the left position, the unit may start and run. If the HMI
Control Panel is connected and functional, the On and Off keys will still work. The Off
key will turn the unit off if fuse F10 is in the left position, but the Base Controller will
remain powered up.
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ntt:: If fuse F10 is installed in the left position and the unit is turned off using the Off key,
the unit will shut down but the Base Controller will remain powered up. Leaving the
unit turned off in this manner for an extended period may result in a dead battery.
Fuse F15
The device identified as F15 is a poly switch. This over-current device resets automatically and is
not replaceable.