SkyTrak 6036 Service Manual - Manual (Page 238)

Section 10. Electrical System
10-44 Model 6036 S/N 9B0499 and Before
10.8.6 Engine Coolant
High Temperature Sender
The engine coolant temperature light warns the
operator to discontinue forklift operation immedi-
ately when engine coolant is too hot.
When ignition switch is in RUN position, current
through the bulb can be grounded through the
coolant high temperature sender. The sender
closes when the coolant temperature exceeds 210
°F (99 °C) and the bulb lights.
a. Removal
1. Disconnect negative (–) cable (2, Fig. 10.38)
from the batteries.
2. Unlock and open right engine access door.
IMPORTANT: Drain engine coolant below the
level of the high temperature sender, Fig. 10.49.
3. Tag and disconnect wire from high tempera-
ture sender terminal, Fig. 10.49.
4. Remove high temperature sender.
b. Disassembly
Do not disassemble high temperature sender.
c. Cleaning and Drying
Without submerging the sender, clean the sender
as required by using a fiber bristle brush and an
approved cooling system cleaner.
d. Inspection and Replacement
Test the sender by connecting a low voltage dc
power supply and a test lamp to the sender and
suspending its probe in engine coolant which is
several degrees below 210 °F (99 °C). The
sender should remain open. It should close when
coolant exceeds this temperature.
e. Installation
1. Install high temperature sender.
2. Connect wire to terminal of engine coolant
high temperature sender.
3. Add engine coolant to normal operating level.
4. Connect negative (–) cable (2, Fig. 10.38) to
the batteries.
4. Operate engine and check for coolant leaks.
5. Close and lock right engine access door.
10.8.7 Alternator Not Charging Light
The alternator not charging light warns the opera-
tor to discontinue forklift operation immediately
due to a malfunction in the battery charging circuit.
Wire number 6 from the alternator is energized
and lights the alternator not charging bulb if the
alternator stops supplying current upon demand
by the charging circuit.
Refer to paragraph 10.8.4 for procedure for
replacing indicator lamp.
Fig. 10.50 Transmission High Temperature Sender
10.8.8 Transmission
High Temperature Sender
The transmission high temperature light warns the
operator to discontinue forklift operation immedi-
ately because the fluid in the transmission is too
hot.
When the ignition key is in RUN, current through
the bulb can be grounded through the transmis-
sion high temperature sender. The sender closes
when the fluid temperature exceeds 250 ± 5 °F (99
± 3 °C) and the bulb lights.
a. Removal
1. Disconnect negative (–) cable (2, Fig. 10.38)
from batteries.
2. Remove transmission cover.
3. Tag and disconnect wire from high tempera-
ture sender terminal, Fig. 10.50.
4. Remove high temperature sender.
b. Disassembly
Do not disassemble the transmission high tem-
perature sender.
c. Cleaning and Drying
Without submerging the sender, clean the sender
as required by using a fiber bristle brush and an
approved solvent.
TRANSMISSION HIGH
TEMPERATURE SENDER
MA1301