Snorkel TB125J - Manual (Page 33)

Chapter 7 – Prestart Inspection
T125J/TB125J – 0192214 33
Figure 7.10 – Tires and Wheels
The aerial platform has foam filled tires. Foam filled tires
do not have a pressure decal or a valve core.
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.
Axle/Boom Interlock
Test for proper operation of the axle/boom interlock
system from the lower controls with no material or per-
sonnel in the platform.
With the axles retracted and the pin properly locked in
position in the top hole (refer to Figure 7.11), operate
the boom up and extend functions. The boom should
only raise to a few degrees above horizontal, at which
point it will stop. After resetting it to the original position,
extend the boom, it should only extend approximately
3′ (1 m).
Figure 7.11 – Rear Axles Retracted
Following the instructions in Chapter 8 — Operation,
extend the rear axles but do not install the pin lock.
With the axles extended and the pin out, (refer to Fig-
ure 7.12), operate the boom up and extend functions.
The boom should only raise to a few degrees above
horizontal until it stops. Reset the boom to the original
position and activate the extend function, it should only
extend approximately 3′ (1 m).
Figure 7.12 – Rear Axles Extended
Lock the pin in position in the bottom hole (refer to Figure
7.13) and extend the boom 10 to 20 feet (3 m to 6 m).
Figure 7.13 – Rear Axles Extended and Locked
Remove the pin and verify that the jack will not lower
to raise the rear axles with the pin out. Lock the pin in
position in the bottom hole.
Lower Control Station
With no personnel in the platform, test the operation
of each control from the lower controls (refer to Figure
7.14).
Pin Locked In
Top Hole
Pin
Axle
Pin Locked In
Bottom Hole