TM 5-3805-280-24-1
Tests
SWING MOTOR LEAKAGE TEST
SPECIFICATIONS
50 5C (120 10 F)
Oil Temperature
Engine in Standard Mode Speed
Fast Idle
Work Mode Selector Position
Dig Mode
E Mode Switch Position
Off
HP Mode Switch Position
Off
Auto-Idle Switch Position
Off
Swing Motor Leakage
0.2--1.0 L/min (0.05--0.26 gpm)
new acceptable while swinging
Swing Motor Leakage
2 L/min (0.53 gpm) used
maximum acceptable while
swinging
Swing Motor Leakage
8 L/min (2.2 gpm) new
acceptable while stalled
Swing Motor Leakage
16 L/min (4.2 gpm) used
maximum acceptable while
stalled
ESSENTIAL TOOLS
JT03023 (9/16-18 F 37) (Parker No. 06CP-6) Cap
SERVICE EQUIPMENT AND TOOLS
JT05800 Digital Thermometer
Calibrated Container
9025
25
The purpose of test is to check the efficiency of swing
129
motor. Leakage can occur between the cylinder block and
valve plate and the slippers and swash plate when parts
are worn or damaged. The motor must be checked in
more than one position in order to check all pistons and
the circumference of valve plate and cylinder block.
1. Install the temperature probe on the hydraulic
tank-to-pump suction line. (See JT05800 Digital
Thermometer Installation in this group.)
2. Heat hydraulic oil to the specified temperature. (See
Hydraulic System Warm-Up Procedure in this group.)
Oil--Specification
Temperature .......................................................... 50 5C (120 10 F)
3. Stop the engine.
Continued on next page
TX,9025,GG2666
1908JUN981/4
6-260