Snorkel TB42, Operator'S Manual

Page: 32 / 68

Chapter 7 – Prestart Inspection
28 TB42/TB50 – 0075251EE
Radiator
Inspect the radiator hoses and clamps for wear, leakage,
or damage. Make sure the hoses are not hardened,
cracked, or feel spongy. Make sure the cap is in place
and tight.
Coolant leaks are easily visible on the ground. Check
under the chassis for coolant that has leaked.
Make sure the radiator core and ventilation openings on
the cover are free of bugs, dirt, or foreign material that
might restrict airflow.
Fuel Tank
Check the fuel level (refer to Figure 7.4) and add fuel if
necessary. Make sure the cap is securely fastened on
gasoline or diesel tanks.
Figure 7.4 – Fuel Tank
Fuel Line
Visually inspect the entire length of the fuel line for leaks
and damage. Start at the fuel tank and trace the line to
the engine inspecting.
Air Filter
The air filter gauge (refer to Figure 7.5) has an indicator
to show when the filter needs replaced.
Figure 7.5 – Gauges at Lower Controls
To inspect the air filter:
1. Turn the battery disconnect switch on and close the
cowling door.
2. At the lower controls, pull the emergency stop but-
ton outward.
3. Insert the key into the control switch and press the
start button to turn the engine on.
4. Check the clear zone after running the engine for 30
seconds.
• If the indicator is in the red area, replace the filter.
• If the indicator is in the clear area, the filter is OK.
5. Shut off the engine.
Charging System
When the engine is running, the ammeter needle (refer to
Figure 7.6) should be to the right of “0.” Left of the “0” is
discharging.
Cold Weather Start Kit—Block Heater
If the machine engine is a Cummins that is equipped with
an optional engine block heater, visually inspect the heater
and power cord. Inspect for leaks around the heater and
for damage to the power cord.
Electrical System
Electrical power is supplied from two, 600 CCA, 12 volt
batteries. These batteries supply 12 volt DC electrical
power to operate the aerial platform electrical and elec-
trohydraulic components.
Air Filter
Gauge
Reset Button
Ammeter
Fuel Level