SkyTrak 10054 Operation Manual - Manual (Page 162)

160 Model 10054 Rev 3/02
General Maintenance
B. Intermediate Boom Chain Tension Adjustment
(As required)
NOTE: Always perform the “Intermediate Boom Chain Tension Check”
starting on page 155 before adjusting the boom chain tension.
1. Park the vehicle on level ground. Place the travel select lever in (N)
NEUTRAL, move neutral lock lever to NEUTRAL LOCK position,
engage the parking brake switch and raise the boom to a horizontal
position. Retract the boom completely and turn the vehicle OFF.
2. Adjust the intermediate boom extend chains (Figure 112) by tight-
ening the locknuts (Figure 113) located at the rear of the boom. Be
sure each locknut is tightened equally so that each chain maintains
the same tension.
3. Equal chain tension can be checked by the position of the yoke on
the outer boom (Figure 112). The front of the yoke should be paral-
lel with the front edge of the boom.
Figure 112
OH0551
Intermediate Boom
Extend Chains
Yoke
160
Model 10054 Rev 3/02
General Main tenan ce
B.Interm ediate BoomChain Tension Ad ju stment
(A sr equi re d)
NOTE:Al ways per form the“ Inter media teB oomCha inT ensio nC hec k”
star ting onp age155 befor ead jus ting theb oomc hain te nsion .
1.P ark the veh icle on leve lg round .P lace th et rave ls elec tl ever in( N)
NEUT RAL, mo ve neutr allo ck le ver to NE UT RAL LOCK posit ion,
enga geth epa rki ngb rak es witch and ra ise th ebo omto ah orizonta l
pos iti on.Retr act the boom compl etely and turn thev ehic le OF F .
2.A djus tthe inter media teb oomex tendc hains (F igu re 112) byt ight-
ening th el ock nut s( Figu re 113 )l ocat ed att he rea ro ft heb oom .B e
su re each lo ck nu ti st ighte nedeq ually sot hatea chc ha in main tains
the sam et ensi on.
3.E qual cha intens io nc anbe ch ec ke db yt hepos itio no ft heyo keon
the outer boom (F igur e112 ). Th ef ro nt ofthe yoke shoul db ep ara l-
lel with thefr ontedg eof the boom.
Figu re 11 2
OH 0551
Intermed iateBoom
Extend Chains
Yoke