Fluid Filter; Hoses, Tubes, And Fittings; Tires And Wheels; Air Filled - Snorkel TB42J Operato's Manual

Chapter 7 – Prestart Inspection
If necessary, remove the filler cap and add fluid of the
proper type. Refer to Chapter 2 for the proper type and
grade of hydraulic fluid to use. The need to regularly add
fluid indicates a leak that should be corrected.
The sight glass on the reservoir has an internal thermom-
eter to measure the fluid temperature. The temperature
should be less than 200°F (93°C).

Fluid Filter

Checking the condition of the hydraulic fluid filter is part
of the machine maintenance schedule and should not be
performed by the operator.

Hoses, Tubes, and Fittings

Inspect all hydraulic hoses, tubes, and fittings for wear,
leakage, or damage (refer to Figure 7.10). Make sure the
hoses are properly routed to avoid sharp edges, kinking,
and scuffing. Inspect the tubes for dents or other damage
that may restrict fluid flow. Make sure all hoses and tubes
are held firmly in their support brackets.
Figure 7.10 – Hoses, Tubes, and Fittings
Hydraulic fluid leaks are easily visible on the ground.
Check under the chassis for fluid that has leaked.

Tires and Wheels

Visually inspect the tires and wheels (refer to Figure 7.11)
to make sure they are suitable for service. Check the
wheel lug nuts to see that none are missing, damaged,
or loose.
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Figure 7.11 – Tires and Wheels
The aerial platform may have air or foam filled tires. Air
filled tires have a tire pressure decal near the valve stem.
The valve stem also has a valve core like an automobile
tire. Foam filled tires do not have a pressure decal or a
valve core. Different types of tires have different inspec-
tion requirements.

Air Filled

Check air filled tires very carefully for wear, cuts, punc-
tures, or imbedded objects.
A
Danger
The aerial platform can tip over if it becomes un-
stable. Death or serious injury can result from a tip-
over accident. Do not operate the aerial platform if
a tire is leaking air or is in poor condition where a
blow out could occur.
Test the air pressure with a pressure gauge to make sure
the tires are properly inflated. Check the tires several
times throughout the day to see that they are properly
inflated.

Foam Filled

Inspect for large holes or cuts where foam is coming out
of the tire. Look for large imbedded objects, such as angle
iron, that can rip a tire open.
Punctures caused by bolts, screws, or nails are not a
problem for foam filled tires.

Lower Control Station

With no personnel in the platform, test the operation of
each control from the lower controls (refer to Figure 7.12).
TB42J – 0172310