Miller Travel Master SB-10D Owner's Manual - Page 28
Browse online or download pdf Owner's Manual for Welding Accessories Miller Travel Master SB-10D. Miller Travel Master SB-10D 44 pages. Automatic welding sidebeam
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Carriage and auxiliary equip-
ment (if applicable) do not
start when START button PB1
is pressed.
Carriage speed erratic or un-
controllable.
Digital meter display erratic or
not functioning.
Digital meter display inaccu-
rate.
Excessive pinion gear wear.
Carriage drive motor jumps
out of gear rack or trips circuit
breaker CB1.
OM-889 Page 24
Table 8-1. Troubleshooting (Continued)
PROBABLE CAUSE
Improper jumper connections.
Relay CR1.
Auxiliary equipment start sig-
nal not received.
Poor or incorrect connections
to carriage drive motor.
Tachometer Board PC3.
TRAVEL SPEED control R4.
Motor Board PC1.
Digital meter.
Loose plug connections at
rear of meter.
Digital meter.
Tachometer Board PC3.
Plug PLG8 (pin DA on Timer
Board PC2) disconnected
from chassis ground.
Chassis ground connection
not continuous with input
power ground.
Meter Display switch S6 on
Timer Board PC2 in wrong po-
sition.
Mechanical binding or exces-
sive loading.
Improper motor type.
Gear mesh too tight.
Excessive roller friction.
Mechanical binding or obstruc-
tion between motor pinion
gear and beam gear track.
Excessive roller friction.
REMEDY
Check and correct jumper connections accord-
ing to Section 5 or the circuit diagram.
Check and replace CR1, if necessary.
Check all connections to auxiliary equipment
to be sure that connections are correct and
secure (see auxiliary equipment installation
instructions).
Check and secure connections between car-
riage motor and Carriage Control (see Section
3-8).
Contact nearest Factory Authorized Service
Station.
Check and replace R4, if necessary.
Contact nearest Factory Authorized Service
Station.
Replace meter.
Check and secure meter, if necessary.
Check and replace meter, if necessary.
Contact nearest Factory Authorized Service
Station.
Be sure that connection between PLG8 and
chassis ground is secure.
Check to ensure ground control box has not
been lifted and that continuity exists between
chassis ground and input power ground.
Place S6 in correct position (see Section 3-5).
Check for binding, and correct the problem; if
excessive loading, decrease load.
Be sure motor is slow-speed, digital motor
(see Parts List).
Adjust gear mesh according to Section 3-4.
Check roller assemblies for smooth, free op-
eration; replace rollers as necessary.
Using the motor release lever, check carriage
running clearance; remove obstruction and/or
correct binding condition.
Check roller assemblies for smooth, free op-
eration; replace rollers as necessary.