Safety interlock test – Snorkel U Drive 25-sn1001+ User Manual

Page 6

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6

AFTER

USE

EACH

DAY

1.

Ensure

that

the

platform

is

fully

lowered.

2.

Park

the

machine

on

level

ground,

preferably

under

cover.

3.

Secure

against

vandals,

children

or

unautho-

rized

operation

by

turning

the

Key

Switch

to

OFF

and

removing

the

key.

EMERGENCY

LOWERING

If

the

platform

should

fail

to

lower,

NEVER

climb

down

the

mast.

Ask

a

person

on

the

ground

to

open

the

Emer-

gency

Lowering

Valve

to

lower

the

platform.

This

valve

is

located

through

a

cutout

in

the

power

unit

cover

on

the

left

side

of

the

mast.

1.

Pull

the

knob

out

and

turn

one

quarter

turn

either

direction

to

open

the

Emergency

Lower-

ing

Valve.

2.

To

close

the

Emergency

Lowering

Valve,

turn

the

knob

until

it

snaps

back

in.

NOTE:

Once

the

platform

is

fully

lowered,

be

certain

that

the

Emergency

Lowering

Valve

is

closed

again.

The

platform

w

ill

not

elevate

if

the

Emergency

Lowering

Valve

is

open.

Figure

5:

Base

Controls

Emergency Stop

Button

Key

Switch

Emergency

Lowering

Valve

Safety

Interlock

Test

NEVER

perform

this

test

from

the

platform.

1.

Properly

install

all

four

(4)

outriggers

and

level

base

using

screwjacks.

2.

Release

the

tension

on

one

(1)

outrigger

by

turning

the

screwjack

counterclockwise,

until

the

indicator

lamp

is

no

longer

lit.

3.

Activate

lift

switch

on

side

of

m

ast

to

elevate

the

platform.

Platform

should

not

elevate

.

DO

NOT

use

a

machine

that

elevates

when

tension

has

been

released

on

an

outrigger.

Remove

machine

from

service

and

repair

before

using.

4.

Re-level

the

base

with

all

four

(4)

outriggers

then

repeat

step

2

with

another

outrigger.

5.

Repeat

steps

2

, 3

&

4

until

all

four

(4)

outriggers

have

been

tested.

39

NOTES:

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