TM 5-3805-281-24-1
Tests
HYDRAULIC PUMP REGULATOR TEST AND
ADJUSTMENT--MINIMUM FLOW
SPECIFICATIONS
Track Sag
340--380 mm (13-3/8--15 in.)
50 5C (120 10F)
Hydraulic Oil Temperature
Engine Speed
2050 rpm
Work Mode Selector Position
Dig Mode
E Mode Switch Position
Off
HP Mode Switch Position
Off
Auto-Idle Switch Position
Off
Propel Speed Switch Position
Slow Speed (Turtle)
36.5 1 seconds for one
Slow Speed Propel With Track
Raised Cycle Time
revolution from a running start
with pump control valve pilot line
disconnected
ESSENTIAL TOOLS
7/16-20 M 37 (Parker No. 03CP-4) (2 used) Plug
SERVICE EQUIPMENT AND TOOLS
JT05801 Clamp-On Electronic Tachometer
JT05800 Digital Thermometer
Stop Watch
17 mm Combination Wrench
9025
Flat Blade Screwdriver
25
104
The purpose of check is to test and adjust the minimum
flow rate of pumps using the cycle time for propel as an
indicator of pump flow rate.
1. Adjust the track sag for both tracks to specification.
(See procedure in Group 9020-20.)
Track--Specification
Sag ............................................................ 340--380 mm (13-3/8--15 in.)
2. Install a tachometer. (See JT05801 Clamp-On
Electronic Tachometer Installation in this group.)
3. Install the temperature probe on the hydraulic
tank-to-pump suction line. (See JT05800 Digital
Thermometer Installation in this group.)
Continued on next page
CED,TX08227,3141
1928MAY981/5