Snorkel MHP44 - Manual (Page 47)

9. Emergency Operation
■ Emergency Operation Procedures
The fol low ing pro ce dures are emer gency pro ce -
dures only. DO NOT use them for nor mal op er a -
tion. Their pur
pose is to get the plat form and
op er a tor safely to ground when the MHP15/44 will
not start or some other prob lem keeps the plat form
from low er ing in the nor mal way.
❑ Operation From Platform Control Box
Switch set tings listed in the three steps be low must
ex ist at the ground be fore emer gency op er a tion
pro ce dures will work at the plat form con trol box:
Figure 9.1
1. The Master Key Switch  must be ON (see
Figure 9.1).
2. The Emergency Stop switch € must be
(ON) (see Figure 9.1).
3. The Platform/Ground Selector switch 
(see Figure 9.1) must be set to PLATFORM.
Figure 9.2
4. Set the Emergency Stop switch ‚ to ON
(see Figure 9.2).
5. Set the Start switch ƒ (see Figure 9.2) to
ON.
Figure 9.3
6. Step on the platform foot switch „ (see
Figure 9.3).
Figure 9.4
7. Hold the Emergency Lower switch (see
Figure 9.4) down and the platform will begin
lowering.
8. To lower the jib boom, operate the
Emergency Lower switch and the Jib
Boom Lower ‡ switches together (see
Figure 9.4).
9. To slew the boom, operate the Emergency
Lower and Slew † switches together
(see Figure 9.4).
NOTE:
When emer gency low er ing, it is only pos si ble to
Slew or lower the Jib Boom whilst the Up per and
Lower booms are low er ing.
MHP15/44 – 12459A page 9 - 1