Carrier SUPRA 850Mt - Belt, Refrigerant System, and Compressor Service

4-8
4.
4.
1
Be
lt
te
ns
io
n
ga
ug
e
Figure 4-5
Elect
ronic Belt T
ension mete
r
(part n
o.
07-60098-
-00)
It is recommended using an electronic belt tension
gauge ( tester ) P/N 07-60098-00, shown in Figure 4-5
whenever V-belts are adjusted or replaced.
-- Make sure the belt drive is static (not in motion).
-
-
Hold the t
ensio
n meter close
to static
belt section
to avoid misreadings due to hand movement.
-- Place the probe a few millimeters above or below
the belt.
-
-
T
ap
the
be
lt
wi
th
a
fin
ge
r
to
br
in
g
th
e
be
lt
in
to
vi
bra
-
tion. At the same time press the ON/OFF button and
hold.
-
-
The red
dot in
the display lights up in
respon
se to
the belt frequency. When a measurement is obtained,
the device will beep and display the frequency of vibra-
tion in Hertz ( the red dots do not represent commas ).
Table 4-1 Belt tension
Tension ( Hz )
5%
Belts
750 Mt
850 Mt
950Mt
CT3-44TV
engine (D722)
Water pump
CT2-29TV
engine (Z482)
Water pump
Automatic belt
tensioner
Engine to com-
pressor
8
2
7
2
7
3
Alternator
1
14
114
121
Standby motor
to compressor
8
8
6
8
7
4
Standby motor
to Generator
1
4
9
1
3
0
1
2
1
4.
4.
2
Tr
ape
zoi
da
l
V-
be
lt
Engine
Alternato
r
Compressor
Standby
motor
2
3
1
Generator
4
Supra 750 Mt
1.
Eng
ine
to co
mpr
essor
v-be
lt
2.
Standby
motor
to
alterna
tor
v-belt
3.
Stan
dby mo
tor to
comp
resso
r v-be
lt
4.
Standby
motor
to g
enerato
r v-
-belt
X
Freque
ncy checking
point
with e
lectronic b
elt ten
sioner
Engine
Alternato
r
Compressor
Standby
motor
1
2
3
generator
4
Supra 850 Mt
1.
Eng
ine
to
comp
ressor v-belt
2.
Stan
dby
mot
or
to a
lter
nato
r
v-be
lt
3.
Stan
dby m
oto
r to
comp
resso
r
v-
-belt
4.
Stan
dby
mot
or t
o g
ene
rato
r
v-be
lt
X
Freque
ncy checking
point
with e
lectronic b
elt ten
sioner
Engine
Compressor
Standby
motor
Alternato
r
1
2
Generator
3
Supra 950 Mt
1.
Eng
ine
to co
mpr
essor
v-be
lt
2.
Standby
motor
to a
lternato
r a
nd
gener
ator
v-belt
3.
Standby
motor
to com
pressor
v-
-belt
X
Freque
ncy checking
point
with e
lectronic b
elt ten
sioner
Figure 4-6
V-
belt arr
angement