TM 5-3820-246-l4&P
Section IV. UNIT TROUBLESHOOTING PROCEDURES
4-9. GENERAL UNIT
TROUBLESHOOTING PROCEDURES.
a. The troubleshooting System Symptom Index
(Table 4-2) lists common malfunctions which could be
found
during operation of the Paving Breaker. Table 4-3 lists the malfunctions and is followed by a list of tests or inspections
which will help to determine corrective action to be taken. These tests, inspections and corrective actions should be
performed in the order listed. Operation of a deadline unit without a preliminary examination can cause further
damage to a disabled component and possible injury to personnel. By careful inspection and troubleshooting, such
damage and injury can be avoided. In addition, cause of faulty operation of a unit can often be determined without
extensive disassembly.
b. This manual cannot list all malfunctions that may occur, or all tests, inspections, and corrective actions. If a
malfunction is not corrected by the listed corrective actions, notify your supervisor.
Troubleshooting
Page
Procedure
ENGINE
Engine will not start ................................................................................................................................. 4-7
1.
Engine starts but falters or dies .............................................................................................................. 4-12
2.
Engine does not reach normal running speed ...................................................................................... 4-13
3.
Engine will not stop by turning off fuel knob ....................................................................................... 4-16
4.
Engine will not stop by pushing throttle button completely down ................................................... 4-16
5.
Sudden increase in engine speed ............................................................................................................ 4-17
6.
Engine runs but tool action is weak ....................................................................................................... 4-18
7.
Engine runs normally but drill rod does not turn ................................................................................ 4-19
8.
STARTER
Starter rope will not retract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
1.
4-20
Starter will not turn over engine .......................................................................................
2.