TM 5-3805-280-10
Operational Checkout
YES: Go to next check.
CYCLE TIMES CHECK
CAUTION: Make sure area is clear and large enough to operate all
functions of machine.
NO: Go to your
authorized dealer.
IMPORTANT: Warm hydraulic oil to operating temperature for this check.
Engine at fast idle.
Auto-idle switch OFF.
BOOM
T6477AQ UN19OCT88
ARM, BUCKET, SWING, PROPEL
Move machine to position shown for each test.
Record cycle time for each function.
Function
Typical New (Seconds)
3.1 0.3 with 2.96 m (9 ft
Boom Raise (cylinder
extend)
9 in.) arm
T7884AE UN10NOV92
2.5 0.3 with 2.96 m (9 ft
Boom Lower (cylinder
retract)
9 in.) arm
3.9 0.3
Arm In (cylinder extend)
2.6 0.3
Arm Out (cylinder retract)
4.1 0.3
Bucket Load (cylinder
extend)
2.5 0.3
Bucket Dump (cylinder
retract)
14.4 1.0
Swing Left or Right 3
Revolutions From a
Running Start
Propel:
20 m (65 ft) From a
Running Start (check in
forward and reverse)
13.4 0.6
propel speed switch in
FAST position
20.6 2.0
propel speed switch in
SLOW position
Does machine perform within specifications?
1/1
21-14