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Hydraulic system cold weather warm-up, Preparing for operation, Lower controls – Snorkel SB85J-sn10000+ User Manual

Page 12: Upper controls, Caution

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Operation

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SB85J Fixed Axle – 0112998

GM — Radiator Hose In-Line

Plug the heater cord into a 125 Volt AC, 600 watt source

eight hours before starting the engine. The heater will

warm the water in the lower radiator hose to make cold

weather starting easier.

Unplug the power cord before starting the engine.

Hydraulic System Cold Weather Warm-Up

The hydraulic oil may be warmed by bottoming out the

boom extension cylinder. Raise the main boom so it is

horizontal and operate the boom retract function while the

machine is stowed. With the cylinder bottomed out the oil

flow will produce heat to warm the hydraulic oil.

A

Caution

Not all hydraulic fluid is suitable to use in the hy-

draulic system. Some have poor lubricating charac-

teristics and can increase component wear. Only use

hydraulic fluid as recommended.

Use cold weather hydraulic oil as recommended in the

machine General Specifications in temperatures of

-12°C (10°F) or below.

Preparing for Operation

Use the following procedure to prepare the aerial platform

for operation.

1. Perform a prestart inspection as described in the “Daily

Preventative Maintenance Checklist” on page 17.

2. Place the battery disconnect switch in the on posi-

tion.

3. Close and latch the doors.

4. Before painting or sandblasting make sure the sand-

blast protection kit and the platform control cover are

properly installed. These options, when used properly

will protect the control placards and cylinder rods from

paint overspray and abrasion while sandblasting.

Lower Controls

The lower controls override the upper controls. This

means that the lower controls can always be used to

operate the platform regardless of the position of the

upper control emergency stop button.

Boom, turntable, and platform functions may be operated

from the lower controls. The lower controls may be used

for initial set up of the aerial platform, and for testing and

inspection.

Use the following procedure to operate boom, turntable,

or platform functions using the lower controls (ref: Figure

3 on page 6).

1. On dual fuel machines, set the fuel switch to either

LPG or gasoline.

2. Open the shut-off valve on the tank if using LPG.

3. Pull the emergency stop button outward. Insert the

key in the control selector and turn the switch to the

lower control position.

4. Press the start button until the engine starts, then

release. The engine will not start if the control selec-

tor switch is left in the lower control position for 30

seconds or longer before starting the engine. The

control selector switch must be turned back to off

before the engine will start.

5. Let the engine warm to operating temperature.

6. Turn the boom speed knob to slow.

7. Hold the ground operation switch in the on position

while operating the boom and turntable control toggle

switches.

8. Hold the appropriate toggle switch in the desired

direction.

9. Gradually turn the boom speed knob to control

the main boom raise/lower and turntable rotation

speed.

10. Release the function toggle switch to stop move-

ment.

11. Place the ground operation switch in the off position

when no functions are being operated.

Upper Controls

The upper controls may be used for driving the aerial

platform and positioning the booms and platform while

on the job.

Use the following procedure to operate machine functions

using the upper controls.

1. At the lower controls, pull the emergency stop button

outward. Insert the key in the control selector and turn

the switch to the upper control position.

2. On dual fuel machines, set the fuel switch to either

LPG or gasoline.

3. Open the shut-off valve on the tank if using LPG.

4. Enter the platform and securely close the gate.

5. Attach the fall restraint lanyard to one of the anchor

points.

6. Pull the emergency stop outward.

7. Turn the anti-restart master switch to on and pause

a few seconds while the alarm sounds to alert others

that the machine is about to start. Turn the switch to

start, then release it to on. The engine will not start if

the switch is left in the on position for 30 seconds or

longer before turning it to start. The switch must be

turned back to off before the engine will start.