The EPV16 has an ENABLE switch fitted to
the Upper & Lower control boxes. (see
Chapter 6 for a full explanation of the
operation of this switch).
Hydraulic machines will be fitted with a
FOOT OPERATED ENABLE switch.
On those machines fitted with the foot
switch option, both the switch on the control
box and the foot switch perform the same
function.
However it is assumed that for units fitted
with a foot switch this will be the preferred
method of operation.
Figure 11.3 - Enable Switch (Foot)
4. Step on the platform foot switch
(see
Figure 11.3).
5. Whilst still operating the enable switch, press
and hold the
Emergency Lower
switch
down and the upper boom will begin
lowering.
6. To op er ate other func tions dur ing the
emer gency lower the fol low ing switches must
be op er ated to gether.
En able
or
(foot switch - Fig ure 11.3)
Emer gency Lower
As soon as these switches are op er ated the
up per boom will be gin de scend ing. If an other
func tion is de sired it must be se lected be fore
the boom has reached the rest po si tion
e.g. Up per or Lower Boom
or
Slew
NOTE:
When emer gency low er ing, it is only pos si ble to
Slew or lower the Jib Boom whilst the Up per
boom is low er ing.
❑
Operation from ground control station
hydraulic control machines
Emer gency op er a tion from the ground is very sim -
ilar to emer gency op er a tion from the plat form.
➠
Ground con trol sta tion set tings
1. The
Emer gency
Stop
switch
must be
(ON) (see Fig ure 11.4).
2. The
Platform/Ground Selector
switch
(see Figure 11.4) must be set to GROUND.
Figure 11.4 - Ground Controls, Machines with
Hydraulic Controls
3. Op er ate the En able switch
by press ing the
switch down and hold it down .
4. Whilst still operating the enable switch, press
and hold the
Emergency Lower
switch
down and the upper boom will begin
lowering.
5. To op er ate other func tions dur ing the
emer gency lower the fol low ing switches
and/or valve le vers must be op er ated
to gether.
En able
Emer gency Lower
As soon as these switches are op er ated the
up per boom will be gin de scend ing. If an other
func tion is de sired it must be se lected be fore
the boom has reached the rest po si tion
e.g. Up per or Lower Boom
or
Slew
page 11 - 2
Rev A
EPV16 – 13642-1
11. Emergency Operation
OFF
PLATFORM
ON
ON
BASE
LIFT
ENABLE
lb
kg
STABILISER
BOOMS
13540-1 REV B
ENABLE
EMERGENCY
LOWER
ELECTRIC
START
CHOKE
IMPORTANT
