IMPORTANT: The control module cover and fan filter
must be in place for the fan to properly cool the inver-
ter drive. Failure to observe this warning will void the
warranty and could lead to expensive inverter drive re-
pair.
3.
On machines equipped with an automatic chemical supply
system, check chemical connections by inspecting all connec-
tions and chemical hoses for leaks or cracks.
IMPORTANT: Chemical leaks can quickly cause perma-
nent damage to the machine components and struc-
ture.
Monthly
NOTE: Disconnect power to the machine at its source
before performing the monthly maintenance proce-
dures.
1.
Check belt(s) require replacement or adjustment. Call a quali-
fied service technician in either case.
a. Check belt(s) for uneven wear and frayed edges. Belts
must not be twisted and must be properly seated on pul-
leys.
b. After disconnecting power to the machine and removing
all panels necessary for access to the drive belt, use one of
the following methods to verify that the belt is properly
tensioned.
NOTE: Basket pulley must be rotated three (3)
full turns before assessing belt tension after ev-
ery adjustment.
•
Frequency Gauge.
Tighten eyebolt top nut until the
correct frequency (refer to
Table 42
) is obtained mid-
span. Torque jam nut to spring bracket to 20.6 ± 2 ft.-
lbs. Refer to
Figure 41
.
PHM963N_SVG
1
2
5
4
3
1.
Top Nut
2.
Jam Nut
3.
Spring Length
4.
Spring
5.
Eyebolt
Figure 41
•
Tension Gauge.
Tighten eyebolt top nut until the
proper belt gauge (refer to
Table 42
) is obtained mid-
span. Torque jam nut to spring bracket to 20.6 ± 2 ft.-
lbs. Refer to
Figure 41
.
•
Spring Length.
Tighten eyebolt top nut until the
spring measures the correct distance between the
hooks. Refer to
Table 40
. Torque jam nut to spring
bracket to 20.6 ± 2 ft.-lbs. Refer to
Figure 41
.
Spring Length, in. [mm]
Model
Distance Between
Hooks
20 (2 HP)
5 1/8 [130]
30-40
4 3/4 [121]
60
5 1/16 [129]
80-100
4 3/4 [121]
Table 40
•
Burroughs Gauge (20 pound 1 HP models only).
Use a Burroughs belt gauge to obtain proper tension.
Proper belt tension is obtained when belt can be de-
flected from normal position (refer to
Figure 42
)
when moderate pressure of is applied to the point mid-
way between pulleys.
Maintenance
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