TM 5-3805-291-23-1
HYDRAULIC SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
0017 00
IMPLEMENT CYCLE TIME CHECK
0017 00
WARN I N G
Sudden movement or accidental starting of machine can cause injury or death to personnel on or near
machine.
N OT E
Implement cycle time can be checked to verifycomplaint about slow implement speed. This test
will also help to determine whether all functions are slow or only one function is slow.
For all cycle time tests,work tool must be empty.
1.
Warm hydraulic oil to normal operating temperature
Implement Cycle Times (Seconds) for 966H
of 150 5F (65 3C) for accurate results.
Tilt
2.
Perform torque converter stall test to verify engine is
Raise
Lower
Float
Dump
Back
developing adequate power (WP 0014 00).
3.
Perform calibration of main control valve to ensure
6.5 0.5
3.5 0.5
2.8 0.5
2.5 0.5
2.2 0.5
solenoid valves are functioning properly. Refer to
Main Control Valve (MSD) Calibration in this work
package.
4.
Start and run engine at low idle (TM 5-3805-291-10).
Raise
1.
Move work tool to TILT BACK position (TM 5-3805-291-10).
2.
Lower work tool completely (TM 5-3805-291-10).
3.
Increase engine rpm to high idle (TM 5-3805-291-10).
4.
Move lift control lever to RAISE position (TM 5-3805-291-10). Hold lift control lever in this position until lift cylinder
reaches end of travel.
N OT E
Cycle time for full RAISE should be 6.5 0.5 seconds.
5.
Record amount of time required for work tool to travel from full LOWER position to full RAISE position.
6.
Decrease engine rpm to low idle (TM 5-3805-291-10).
Lower
1.
Position work tool flat on ground (TM 5-3805-291-10).
2.
Raise work tool to full RAISE position (TM 5-3805-291-10).
3.
Increase engine rpm to high idle (TM 5-3805-291-10).
N OT E
Ensure lift control lever is NOT in FLOAT position.
4.
Move lift control lever to full LOWER position and hold (TM 5-3805-291-10).