SkyTrak 10054 Operation Manual - Manual (Page 167)

Ge nera lM ain ten anc e
165
Model 10054 Rev 3/02
Ifthe measu re ment iswi thin the spe cifie dr anges meas ure th ei nner boom
ex tendc hain sag again.
10.S tar tt he ve hic le, with theou trig ge rs lowe re dc omple tely, cycl et he
boom inand outse vera lt im es .W ith th eb oomhor iz on tal, fully
ex tend the boom andthe nr etrac ti t2" (51 mm). Tu rn the vehi cle
OFF.
11.M easur et hes agi nt heinn erbo ome xtend chain between thebot -
tom of th ec hain and the top ofth es econd ary int ermed iate boom at
the clo sest point (F igur e1 17). Acc eptabl eb oomc hain sag is
betwee n1.5" (3 8mm) and2. 5"( 64mm ). If the meas urem enti sle ss
than 1.5"( 38mm) ,t he inne rboo mex ten dc hain need st obe
adju sted. See “Inne rB oom Ch ainT ension Adj ustmen t”on
page 165.
Figu re 11 7
D.Inner BoomChain TensionAdjustment
(A sr equi re d)
NOTE:Al ways per form the“ Inner Boom Chain Tens ion Che ck” star tin go n
page 162bef ore adjus 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 .
OA0 491
Inn er Boo mC hain
Sag
Ce nter Se ctio nO f
Seconda ry
Intermedi ateBo om
General Maintenance
165 Model 10054 Rev 3/02
If the measurement is within the specified ranges measure the inner boom
extend chain sag again.
10. Start the vehicle, with the outriggers lowered completely, cycle the
boom in and out several times. With the boom horizontal, fully
extend the boom and then retract it 2" (51 mm). Turn the vehicle
OFF.
11. 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 117). Acceptable boom chain sag is
between 1.5" (38 mm) and 2.5" (64 mm). If the measurement is less
than 1.5" (38 mm), the inner boom extend chain needs to be
adjusted. See “Inner Boom Chain Tension Adjustment” on
page 165.
Figure 117
D. Inner Boom Chain Tension Adjustment
(As required)
NOTE: Always perform the “Inner Boom Chain Tension Check” starting on
page 162 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.
OA0491
Inner Boom Chain
Sag
Center Section Of
Secondary
Intermediate Boom