Manual

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
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