Hydraulic System; Fluid Level; Hoses, Tubes, And Fittings; Tires And Wheels - Snorkel TM12 Series Operator's Manual

Hydraulic System

Hydraulic power is supplied from a single stage hydraulic
pump with a 4 horsepower DC electric motor.
Danger
Hydraulic fluid escaping under pressure can have
enough force to inject fluid into the flesh. Serious
infection or reaction will result if medical treatment is
not given immediately. In case of injury by escaping
hydraulic fluid, seek medical attention at once.
The hydraulic reservoir is inside the tray on the right side
of the chassis.

Fluid Level

To inspect the fluid level:
1. Make sure the aerial platform is fully stowed on a
level surface.
2. Open the hydraulic tray on the right side of the ma-
chine.
3. The fluid should be between the minimum and maxi-
mum fill lines (refer to Figure 8.5).
Maximum Level
Minimum Level
Figure 8.5 – Hydraulic Fluid Reservoir
Caution
Not all hydraulic fluid is suitable to use in the hydrau-
lic system. Some have poor lubricating character-
istics and may increase component wear. Only use
hydraulic fluid as recommended.
4. If necessary, remove the filler cap and add fluid of
the proper type. Replace the cap making sure it is
tightly in place.
Note
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.
TM12 – 8210027
Chapter 8 – Prestart Inspection

Hoses, Tubes, and Fittings

To inspect the hoses, tubes, and fittings:
1. Inspect all hydraulic hoses, tubes, and fittings for
wear, leakage, or damage (refer to Figure 8.6).
Figure 8.6 – Hoses, Tubes, and Fittings
2. Make sure the hoses are properly routed to avoid
sharp edges, kinking, and scuffing.
3. Inspect the tubes for dents or other damage that may
restrict fluid flow.
4. Make sure all hoses and tubes are held firmly in their
support brackets.
5. Check under the chassis for fluid that has leaked. Hy-
draulic fluid leaks are easily visible on the ground.

Tires and Wheels

Visually inspect the tires and wheels (refer to Figure 8.7)
to make sure they are suitable for service.
Figure 8.7 – Tires and Wheels
To inspect the tires and wheels:
1. Visually inspect the tires. They should be smooth
without any cuts, gouges, or missing rubber that
might affect aerial platform stability.
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