TM 5-3800-205-23-1
TROUBLESHOOTING INTRODUCTION
INTRODUCTION
1.
Troubleshooting procedures are grouped into tables, containing information you need to fault locate malfunctions on the
613CS Scraper or 613CWD Water Distributor. A Troubleshooting Symptom Index in WP 0006 00 is provided to aid in
locating a malfunction or symptom and direct you to the appropriate troubleshooting table in WP 0007 00.
2.
WP 0005 00 contains tests, inspections, and adjustments that may be performed as a function of troubleshooting or
maintenance.
PRELIMINARY TROUBLESHOOTING PROCEDURES
NOTE
Fluid leaks are classified as either Class I, Class II or Class III
Class I:
Seepage of fluid (as indicated by wetness or discoloration) not great enough to form drops.
Class II:
Leakage of fluid great enough to form drops, but not enough to cause drops to drip from item
being checked/inspected.
Class III:
Leakage of fluid great enough to form drops that fall from item being checked/inspected.
1.
Before starting any specific troubleshooting procedures, perform the following:
a.
Visually check for ruptured oil hoses or tubes and for Class II or Class III leaks.
b.
Check for mechanical jamming or binding caused by rocks or other foreign matter.
c.
Check fluid levels in subject area and service as required (TM 5-3800-205-10-1 or TM 5-3800-205-10-2).
2.
Ensure all applicable operator troubleshooting has been performed before proceeding.
EXPLANATION OF TROUBLESHOOTING TABLE COLUMNS
The columns in troubleshooting tables are defined as follows:
MALFUNCTION. Indicates fault that has occurred in system/equipment.
1.
2.
TEST OR INSPECTION. Indicates test or inspection to be performed to isolate probable cause for fault symptom.
3.
CORRECTIVE ACTION. Indicates procedure to correct the problem.
ELECTRICAL TROUBLESHOOTING
1.
Analyze the symptoms and conditions and use common sense and logic to determine the most likely cause for the prob-
lem, then troubleshoot that circuit first. The more information you have concerning the problem, the easier it will be to
troubleshoot.
2.
Isolate to the subsystem level (in cases where more than one subsystem is involved); next isolate the problem to a single
circuit within the subsystem; then, isolate the problem to the faulty component using the troubleshooting symptom index
3.
Frayed, broken, loose or corroded wiring is a common source of problems in any electrical circuit. Always make visual
inspection before starting detail troubleshooting. Observe in particular contacts to ground. Components with case
grounds are especially troublesome.
CAUTION
When making continuity checks, make sure the test equipment is isolated from power source. Failure to do
so may result in damage to equipment.
4.
Most of checks made are voltage checks. Pay particular attention to voltages being checked in procedures. This equip-
ment is a 24-volt system. Instructions prior to the step instruct to disconnect at test point from the potential malfunction-
ing component. Once the check has been made, either repair the component or go to the referenced step. If going to
another step, reconnect connection or do as otherwise instructed, such as install jumper wires using jumper wire kit.
When ready to make the prescribed check, apply power to the circuit (if required). A helper may be required if the
switch or power source is out of reach. Release the power function prior to going on, to avoid damage to equipment.
