28
TK 56218-2-OP-EN
Engine Compartment Components
The following maintenance items can be checked visually.
W
WA
AR
RN
NIIN
NG
G
R
Riisskk o
off IIn
njju
urry
y!!
The unit can start at any time without warning. Press the OFF key on the
HMI control panel and place the microprocessor On/Off switch in the Off
position before inspecting or servicing any part of the unit.
C
CA
AU
UT
TIIO
ON
N
S
Se
errv
viicce
e P
Prro
occe
ed
du
urre
ess!!
Turn the unit off before attempting to check the engine oil.
E
En
ng
giin
ne
e O
Oiill D
Diip
pssttiicckk:: Use the engine oil dipstick to check the engine oil level.
Unit Protection Devices
C
Co
oo
olla
an
ntt L
Le
ev
ve
ell S
Sw
wiittcch
h:: The coolant level switch closes if the coolant level
drops below an acceptable level. If it stays closed for a specified time, the
microprocessor records Alarm Code 37.
E
En
ng
giin
ne
e C
Co
oo
olla
an
ntt T
Te
em
mp
pe
erra
attu
urre
e S
Se
en
nsso
orr:: The microprocessor uses the engine
coolant temperature sensor to monitor the engine coolant temperature. If
the engine coolant temperature rises above an acceptable level, the
microprocessor records Alarm Code 41 and possibly 18. The microprocessor
might also shut the unit down.
F
Fu
usse
ess:: Various fuses protect circuits and components.
Fuse
Size
Function
F1
5A
2A Power for REB
F2
15A
On/Off Switch Circuit
F3
40A
Fuel Solenoid/Starter Circuit
F4
None
2A
No Fuse - All Bosch and Thermo King Alternators
2A Fuse - All Prestolite Alternators
F5
60A
Preheat Circuit (See Note)
F6
15A
High Speed Solenoid Circuit
F7
2A
8X Power for CAN bus
