SkyTrak 10054 Operation Manual - Manual (Page 170)

168 Model 10054 Rev. 11/03
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 (1) in the inner boom extend chain (2) between
the bottom of the chain and the top of the secondary intermediate
boom (3) at the closest point. Acceptable inner boom chain sag is
between 1.5" (38 mm) and 2.5" (64 mm). If the measurement is not
between 1.5" (38 mm) and 2.5" (64 mm), the boom chain needs to
be adjusted.
OH2390
50
OH2670
1000
OH2690
OA0491
1
2
3