Snorkel S4732E - Cables and Wiring Harness; Hydraulic System; Fluid Level; Hoses, Tubes, and Fittings

Chapter 8 – Prestart Inspection
S3215L/S3215E/S3219E/S3220E/S3226E/S4726E/S4732E – 1500834 33
Figure 8.6 – Hydraulic Tray
Caution
Not all hydraulic uid is suitable to use in the hydrau-
lic system. Some have poor lubricating character-
istics and may increase component wear. Only use
hydraulic uid as recommended.
2. If necessary, add uid of the proper type.
Note
Refer to Chapter 2 for the proper type and grade of
hydraulic uid to use. The need to regularly add 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 ttings:
1. Inspect all hydraulic hoses, tubes, and ttings for
wear, leakage, or damage (refer to Figure 8.7).
Figure 8.7 – Control Valve Tray
Right Side of Chassis
2. Make sure the hoses are properly routed to avoid
sharp edges, kinking, and scu󰀩ng.
Figure 8.5 – 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 scu󰀩ng.
Hydraulic System
Hydraulic power is supplied from a single stage hydraulic
pump with a 4.25 horsepower DC electric motor.
Danger
Hydraulic uid escaping under pressure can have
enough force to inject uid into the esh. Serious
infection or reaction will result if medical treatment is
not given immediately. In case of injury by escaping
hydraulic uid, seek medical attention at once.
The hydraulic reservoir, pump, and lter are located in the
hydraulic tray on the left side of the chassis. Unlatch and
swing out the tray to inspect the hydraulic components.
Fluid Level
To inspect the uid level:
1. Make sure the aerial platform is fully stowed on a
level surface. Swing out the hydraulic tray and vi-
sually check to make sure the uid is visible in the
sight gauge (refer to Figure 8.6). Some machines
may have a ll cap with a dipstick. The uid must be
visible on the dipstick.
Safety Prop
Fill Cap with Strainer
Sight Gauge
Diagnostic Center
LCD Display
Free-Wheeling Valve
on Side of Manifold
Normal Operation Fully Closed – CW
Free-Wheeling Valve
on Back of Manifold
Normal Operation Fully Open – CCW