SkyTrak 10054 Operation Manual - Manual (Page 104)

102 Model 10054 Rev 3/02
Emergency Operations
BOOM LOWER LINE FAILURE (Lift Cylinders to Control Valve)
1. Clear the area of any unnecessary personnel.
2. Place the travel select lever in (N) NEUTRAL, move the neutral lock
lever to NEUTRAL LOCK position and engage the parking brake
switch.
3. Block all four wheels.
4. Temporarily block up or support the outer boom.
5. If the load is in a position where it can be removed safely, com-
pletely remove the load from the carriage and/or attachment; other-
wise, leave the load in place.
6. Place a 10 gallon (40 liter) container under the vehicle to catch any
hydraulic oil that will escape during this procedure.
NOTE: If a replacement hose is not available, the adjacent boom lift line
(Figure 68) can be used to replace the failed boom lower line.
7. Remove the individual failed boom lower line (Figure 68) from the
circuit.
8. Remove and temporarily reposition the adjacent boom lift line
(Figure 68) in place of the failed boom lower line.
IMPORTANT! Once either boom lift line is removed and the boom is
retracted during the remaining steps, hydraulic oil will drain out of the base
end of the boom cylinder. The escaping oil should be deflected by some
means (the failed hose could be used) directing the oil into the drain
container.
9. Check the hydraulic oil level and add oil if needed.
STEP 3
WARNING:
DO NOT get under a raised boom unless the
boom is blocked up. Always block the boom before doing any ser-
vicing that requires the boom to be up.
WARNING:
Wear protective clothing and proper eye pro-
tection when working with or around hydraulic oil. Wait for hydrau-
lic oil to cool before attempting to repair the failure. Hot hydraulic
oil can cause severe burns and other serious injury.
102
Model 10054 Rev 3/02
EmergencyOperations
BOOML OW ER LIN EF AILURE (Lift Cylinder sto ControlV alve)
1.Cl ear the are aof any unnec essa ry pers onnel .
2.P la ce th etr av el selec tle ver in( N)N EUTRA L,mo veth eneut ra llo ck
le ve rto NEUTRA LL OCK pos ition andeng agethe park ing brak e
swit ch.
3.B lo ck all fourwh eels.
4.T empor ari ly bloc kup or suppor tt heo uter boom .
5.If theloa di sin apo sitio nwh ere it can be rem oved safe ly, com-
plet elyr emov ethe load fro mth ec arri age and/o ra ttachm ent;oth er-
wis e,l eave the load inpl ace.
6.P la ce a10 gal lon( 40li ter) conta iner under the vehi cle to cat chany
hydr aulic oil th at will esca pe du rin gt his pro cedu re.
NOTE:If ar ep lace ment hose isno tav ailab le,the adjac entboo ml iftli ne
(F igur e6 8)ca nb eu se dt or eplac ethe fail edboo ml owerl in e.
7.Re move thei ndiv idual faile dbo oml ower line (F igur e6 8)fr omthe
circu it.
8.Re move andtemp orar ily re posit ionthe adjac entboo ml iftli ne
(F igur e6 8)in place ofthe fail edboo ml owerl in e.
IMPOR T ANT! Onc ee ith erboo ml iftli nei sr emov edand thebo omi s
retr ac ted duri ngt her emai ning ste ps,h ydra ulic oil will drai no utof thebas e
end of the boom cy linde r. Th ee scapi ngoi ls hould bedefl ected by some
mean s( the fail edhos ec ould beu se d)di re cti ngthe oil into thedr ain
cont aine r.
9.Ch eck the hy dra ulic oil lev eland addoi li fne eded.
STEP 3
WA RNING:
DON OT ge tu nde ra rai sed bo om unl ess the
boom isb loc ke du p. Alw ay sb loc kt heboom befo re doing any ser -
vic ing th atr equi re st heb oomto be up .
WA RNING:
We arpr otect ive clo thing and pro pere ye pro -
tect ionwhen wo rk ing wit ho ra round hy drau lic oil. Wa it for hy drau-
lic oil to cool befo re attempt ingto re pair the fai lu re. Hoth ydr auli c
oil ca nc ause se ver eb urns and other ser io usi njur y .