T a b l e
4 - 7 .
L o a d
B a n k
P r e v e n t i v e
M a i n t e n a n c e
C h e c k s
a n d
S e r v i c e s
ITEM
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
INTERV,
DPERATOI
DAILY
B
x
x
D
A
.
;(
i
B - Before Operation
A - After Operation
M - Monthly (100 hrs)
D - During Operation
W - Weeklv (40 hrs)
s-
:mi Annual (500 hrs)
lTEM TO BE
INSPECTED
PROCEDURE
Kit attaching hard.
ware and cables,
Wiring harness.
Control panel
assembly.
Rotary switch.
Load reject toggle
switch.
Fan guard.
Air outlet and fan.
Fan motor
brushes.
Over temperature
reset switch
circuit breaker,
Fan mounting
grommets.
Indicating light and
lamp.
Load reject re!ay.
Terminal board.
Thermostat.
Heater elements.
Fan motor
assembly
Tighten hardware and inspect cables
for wear and security.
Inspect for frayed insulation and
security of termj.nal lugs and damaget
threads, bent, loose, or missing pins
of connectors.
Inspect for loose mounting hardware
and tight en as necessary.
Inspect switches for positive action
between positions, wiring connections
and damage. Test for proper
operation.
Inspect switch for positive action
between positions, wiring connections
and damage. Test for proper
operation.
Inspect for foreign material.
Inspect for foreign material and
damage to fan.
hspect for wear and refer to next highe
maintenance level for replacement
Inspect circuit breaker for positive
action between positions, wiring
connections, and darnage. Test for
proper operation.
Inspect for deterioration and
looseness.
Inspect lens and lamp for looseness and
damage. Inspect wiring connections
for looseness.
Test for proper
operation.
Inspect for security of mounting
damage, and loose wiring connections,
hspect for loose mounting hardware
and tighten as necessary.
kspect for loose mounting and wiring
connections. Test for proper
operation.
hspect for loose attaching hardware,
damage, and wiring connections. Test
for proper operation.
:nspect for security of mounting and
physical damage
REFERENCE
( p a r a
4 - 4 2 )
( p a r a
4 - 4 3 )
( p a r a
4 - 4 4 )
( p a r a
4 - 4 4 )
( p a r a
4 - 4 4 )
( p a r a 4 - 4 4 )
( p a r a
4 - 4 4 )
( p a r a 4 - 4 4 )
( p a r a 4 - 4 4 )
p a r a 4 - 4 4 )
( p a r a
4 - 4 4 )
( p a r a 4 - 4 5 )
( p a r a 4 - 4 6 )
( p a r a 4 - 4 7 )
( p a r a 4 - 4 8 )
( p a r a 4 - 4 4 )
4 - 3 5