TM9-4110-254-14
4-30.
REPEAT CYCLE TIMER TM1 TESTING AND REPLACEMENT.
This task covers a Testing b Removal c Installation
INITIAL SETUP
Materials/Parts:
Equipment Conditions:
Lock Washers (2)
disconnected.
Self Locking Nut (2)
Control box cover door raised and latched.
Tie Down Strap
General Safety Instructions:
Marker tags (7)
WARNING
High voltage and exposed rotating parts are
used in the refrigeration unit. Personal injury
can result if power is connected.
a.
(1)
Be sure power has been disconnected at the source and remove two bolts (1) and lock washers (2). Open
control panel (3) Discard lock washers.
(2)
Remove and discard tie down strap (4).
(3)
Pull repeat cycle timer (5) from relay mounting socket (6).
(4)
Using multimeter set to measure continuity, check repeat cycle timer (5) continuity between terminals 1 to 7.
Continuity should be indicated. If no continuity was indicated, replace repeat cycle timer.
(5)
Using multimeter set to measure continuity, check repeat cycle timer (5) continuity between terminals 4 to 7
and 6 to 9. No continuity should be indicated If continuity was indicated, replace repeat cycle timer.
(6
If relay mounting socket (6) is damaged, replace it.
(7)
If no failure was indicated, push repeat cycle timer (5) into relay mount socket (6) and install new tie down strap
(4).
(8)
If no failure was indicated, close control panel (3) Install two new lock washers (2) and bolts (1).
b.
Removal.
(1) Be sure power has been disconnected at the source and remove two bolts (1) and lock washers (2). Open
control panel plate (3). Discard lock washers.
(2)
Remove and discard tie down strap (4).
(3)
Pull repeat cycle timer (5) from relay mounting socket (6).
4-66