Chapter 7 – Prestart Inspection
28 S2255RT S2755RT - 15286-1
Figure 7.3 – Safety Prop in Stowed Position
3. Using the lower controls completely lower the plat-
form.
Cables and Wiring Harness
To inspect the cables and wiring harness:
1. Visually inspect all cables and wiring for wear and/
or physical damage such as loose connections,
broken wires, and frayed insulation.
2. Check the wiring in areas where a change in routing
direction may cause them to become pinched.
3. Make sure the cables and wires are properly routed
to avoid sharp edges, pinching, and scuffi ng.
Hydraulic System
Hydraulic power is supplied from a single stage hydrau-
lic pump with an AC electric motor.
Danger
Hydraulic fl uid escaping under pressure can have
enough force to inject fl uid into the fl esh. Serious
infection or reaction will result if medical treatment
is not given immediately. In case of injury by escap-
ing hydraulic fl uid, seek medical attention at once.
The hydraulic reservoir, pump, and fi lter are located in
the hydraulic cabinet on the right side of the chassis.
Fluid Level
To inspect the fl uid level:
1. Make sure the aerial platform is fully stowed on a
level surface. Open the cabinet and visually check
to make sure the fl uid is visible on the full/add sticker
(refer to Figure 7.4).
Figure 7.4 – Hydraulic Tank
Caution
Not all hydraulic fl uid is suitable to use in the hy-
draulic system. Some have poor lubricating char-
acteristics and may increase component wear. Only
use hydraulic fl uid as recommended.
2. If necessary, add fl uid of the proper type.
Note
The need to regularly add fl uid indicates a leak that
should be corrected.
3. Replace the cap making sure it is secured in place.
Hoses, Tubes, and Fittings
To inspect the hoses, tubes and fi ttings:
1. Inspect all hydraulic hoses, tubes, and fi ttings for
wear, leakage, or damage (refer to Figure 7.5).
Figure 7.5 – Free Wheeling Valve
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