SkyTrak 10054 Operation Manual - Manual (Page 164)

162 Model 10054 Rev 3/02
General Maintenance
C. Inner Boom Chain Tension Check
Check the inner boom chain tension by measuring the inner boom extend
chain sag.
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
(level) position.
2. Lower both outriggers completely. Fully extend the boom, then
retract it 2" (51 mm). Turn the vehicle OFF.
3. Measure the sag in the inner boom extend chain between the bot-
tom of the chain and the top of the secondary intermediate boom at
the closest point (Figure 114). Acceptable inner boom chain sag is
between 1.5" (38 mm) and 2.5" (64 mm). If the measurement is not
within the dimensions listed above, the boom chain needs to be
adjusted.
Figure 114
OH2390
50
OH2670
1000
OH2690
OA0491
Inner Boom Chain
Sag
Center Section Of
Secondary
Intermediate Boom
162
Model 10054 Rev 3/02
General Main tenan ce
C.Inner BoomChain TensionCheck
Chec kt hein nerbo omc hain tens ion by measu rin gth ei nner boom ex tend
chai ns ag .
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
(le vel )pos ition .
2.L owerb otho utrig gers comp letely .F ully exte ndt heb oom, the n
retr ac ti t2 "( 51mm ). Tur nthe vehi cle OF F.
3.M easur et hes agi nt heinn erbo ome xtend chain between thebot -
tom of th ec hain and the top of the sec ondar yi nter mediat ebo omat
the clo sest point (F igur e1 14). Acc eptabl ei nner boom chai ns agis
betwee n1. 5"( 38 mm) and 2.5" (64 mm) .I ft he meas urem enti snot
withi nth ed imens ions liste dab ove, the boom chai nne edsto be
adjus ted .
Figu re 11 4
OH 2390
50 OH2 670
1000
OH2690
OA0491
Inner Boom Chain
Sag
Center Section Of
Second ary
Intermed iateBoom