PS Magazine - OCTOBER 1980
PS, The Preventative Maintenance Monthly
ISSUE 335
OCTOBER 1980
Rocking your 20-ton crane's boom while traveling is a PM bust. You'll
bend the boom±main cord angles²
and crush the wOoden cradle pads for
sure.
Never let the boom assembly rock²or rest in the boom cradLe³
when you move the truck-mou´ted crane to a new worksite.
Before you get in the Tµaveling mood, take off the crane Load²bucket,
f¶rinstance.
Secure the utili·y blade .
.. in the
Center the boom between the boom
cradle's upright posts.
¸eave 8 to 9 inches between the
bottom of the boom and the cradle.
You must have these minimum
clearances after you tie down the boom
to the b¹ade. ºake up all the slack on
the chain and load cables. Set the drum
brake.
24
.± n
.±
!@a A
±
·²
»iver
tip: Re¼ember that
·
rawing the hook block hoist cable
•
±
cable cAn be tight o´ the drum one snug
keeps
boom
bouncing
to
/
minute, ¹oose in another. So, check the nil.
. .gives you better control of the
"
=½¾¿booÀ
height in the cradle often. If the vehic¹e while moving aLong.
l/²L'
hook bLock's swaying .
.. stop .
.. and take
Álways
check
your
operator's
.
_
_Âup
slackà If the boom's moving up Än' ma´ual for the stepÅbyÅstep preparaÆ
down, slow down.
tion For overÇtheÈroad travel. See Para
É
Brace or lock the cab to the carrier 2Å3 in ºM 5-3810-232-Ê2 for the
frame.
Ë380, Ì3Í5 cranesÎ for example.
Be sure the tires have the right
amount of air²55 PSI²beÏore you
start to roll.
Know the cra´e's height for bridge
cLearance.
ºake off onLy when you're sure
everything's secure. Move at a slow
speed .
. .'specially
when
crossing
railroad tracks or along washboard
roads.
,
A
±-
-·±
.
±
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:
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²³,
´
µ
¾
-±
¿
²r .³
ºhere are no ÐSN's Ñr the backUp
ÀtÁ
Ö
×ØÙÚÛÜÝ Þßà
alarm or backup aLarm switch fÒr the
Clark ModeL Ê75B Scoop ¸oader, but
you can get these itEms by going the
exception data request
routeÓ
Ôse
ÕSCM Ê2603 a´d these part ´umbers
from page Z48-Ê of your Parts ManuaL
No. 2998.
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