TM 5-3805-280-24-1
Tests
CYCLE TIME TEST
SPECIFICATIONS
50 5C (120 10F)
Hydraulic Oil Temperature
Engine Speed
Fast Idle
Work Mode Selector Position
Dig Mode
E Mode Switch Position
Off
HP Mode Switch Position
Off
Auto-Idle Switch Position
Off
3.1 0.3 sec
Boom Up Cycle Time
2.5 0.3 sec
Boom Down Cycle Time
Boom Position
3.9 0.3 sec
Arm In Cycle Time
2.6 0.3 sec
Arm Out Cycle Time
4.1 0.3 sec
Bucket Load Cycle Time
2.5 0.3 sec
Bucket Dump Cycle Time
14.4 1.0 sec for three
Swing--Check Left and Right
Cycle Time
revolutions from a running start
13.4 1.0 sec for 20 m (65 ft)
Fast Speed Propel--Check
Forward and Reverse Cycle Time
from a running start
20.6 2.0 sec for 20 m (65 ft)
Slow Speed Propel--Check
Forward and Reverse Cycle Time
from a running start
29.9 2.0 sec for three
Slow Speed Propel With Track
Raised--Check Forward and
revolutions from a running start
Reverse Cycle Time
Arm, Bucket, Swing and Propel Position
9025
SERVICE EQUIPMENT AND TOOLS
25
JT05800 Digital Thermometer
54
Stop Watch
Test is used as an indication of overall engine and
hydraulic system performance. A slow cycle time is an
indication of a leaky or malfunctioning hydraulic system
component or a weak engine.
Propel 3-Revolution Position
Continued on next page
TX,9025,GG2645
1921MAY981/3
6-185
