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the small O-ring now indicates a value other than zero
on the force scale. This value represents the force (in
pounds) required to deflect the belt(s) the proper
distance when properly adjusted.
6. Compare the force scale reading in step 5 with the
appropriate "force" value in
force reading is outside of the listed range for the type
of belts used, either readjust the belt tension or contact
a qualified service representative.
Table 69. Belt tension measurements and deflection forces
Belts
Small P.D
Cross
Range
Section
3.0 -3.6
A
3.8 - 4.8
5.0 - 7.0
3.4 - 4.2
B
4.4 - 5.6
5.8 - 8.8
4.4 - 8.7
5V
7.1 - 10.9
11.8 - 16.0
Scroll Compressor Replacement
The compressor manifold system was purposely designed
to provide proper oil return to each compressor. The
refrigerant manifold system must not be modified in any
way.
Note: Altering the compressor manifold piping may cause
oil return problems and compressor failure.
Should a compressor replacement become necessary and
a suction line filter drier is to be installed, install it a
minimum of 16 or 25 inches upstream of the oil separator
tee. See
Figure 113, p.
135.
Important: Do Not release refrigerant to the atmosphere! If
adding or removing refrigerant is required, the
service technician must comply with all
Federal, State and local laws. Refer to general
service bulletin MSCU-SB-1 (latest edition).
RT-SVX072D-EN
Table 69, p.
135. If the
Super Gripbelts
Gripnotch
Min.
Max.
Min.
3
4 1/2
3 7/8
3 1/2
5
4 1/2
4
5 1/2
5
4
5 1/2
5 3/4
5 1/8
7 1/8
6 1/2
6 3/8
8 3/4
7 3/8
—
—
—
—
—
—
—
—
—
Note: The actual belt deflection force must not exceed
the maximum value shown in
7. Recheck the new belt's tension at least twice during the
first 2 to 3 days of operation. Readjust the belt tension
as necessary to correct for any stretching that may
have occurred. Until the new belts are "run in", the belt
tension will decrease rapidly as they stretch.
Deflection Force (Lbs.)
Steel Cable Gripbelts
Max.
Min.
Max.
5 1/2
3 1/4
4
6 1/4
3 3/4
4 3/4
6 7/8
4 1/4
5 1/4
8
4 1/2
5 1/2
9 1/8
5 3/4
7 1/4
10 1/8
7
8 3/4
—
—
—
—
—
—
—
—
—
Figure 113. Suction line filter/drier installation
Service and Maintenance
Table 69, p. 135
358 Gripnotch
358 Gripbelts
Belts
Min.
Max.
Min.
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
10
10 1/2
15 3/4
12 7/8
13
19 1/2
15
CONDENSER - SUCTION
FILTER / DRIER PLACEMENT
There is a min. 16" straight distance
from the Tee (Elbow) to anything in this line.
.
Max.
—
—
—
—
—
—
15
18 3/4
22
135
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