Primus D55, Руководство по обслуживанию

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Section 5 Service Procedures
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the tumbler before servicing.
• Close gas shut-off valve to gas tumbler before servicing.
• Close steam valve to steam tumbler before servicing.
• Never start the tumbler with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the tumbler is properly grounded.
W002
WARNING
55. MOTOR PULLEY
Refer to Figure 15.
a. Remove drive guard cover.
b. Remove drive belt. Refer to Figure 14.
c. Loosen setscrews and remove screws from
tapered bushing.
d. Remove tapered bushing by putting the screws
removed in step “b” into the threaded holes in
the bushing. Turn the screws inward to force
the bushing out of the motor pulley.
e. Remove motor pulley.
Refer to Table 1 on page 42 for critical torques.
NOTE: Belt tension from cylinder drive motor
pulley to step pulley can be measured to ensure
proper installation in one of the following ways:
• Burroughs Belt Tension Gauge initial reading 60-
70 pounds.
• Force to deflect belt .38 inch at midspan with
initial tensioning 6.0 pounds
• Burroughs Belt Tension Gauge reading after run
45-55 pounds.
NOTE: Realign motor pulley directly over sheave
by loosening the tapered bushing and repositioning
the motor pulley on the cylinder motor shaft.
56. JACKSHAFT ASSEMBLY
Refer to Figure 13.
a. Support drive guard cover and remove screws
that hold guard to rear of tumbler. Refer to
Figure 11.
b. Remove cylinder and drive belts.
c. Remove snap ring and pull step pulley off of
jackshaft.
d. Remove four bolts that attach jackshaft to rear
of tumbler.
NOTE: After installing sheave, adjust belts.
57. CYLINDER ASSEMBLY
a. Remove front panel assembly.
b. Support drive guard cover and remove screws
holding guard to rear of tumbler. Refer to
Figure 11.
c. Loosen the four jackshaft assembly attaching
nuts. Refer to Figure 13.
d. Rotate the adjusting nuts counterclockwise
(approximately three turns).
e. Slide jackshaft assembly upwards to loosen the
cylinder belts.
f. Remove cylinder belts.
g. Remove drive belt. Refer to Figure 14.
h. Remove screws from tapered bushing. Refer to
Figure 15.
i. Remove tapered bushing by putting the screws
removed in step “h” into the threaded holes in
the bushing. Turning the screws inward will
force the bushing out of the cylinder sheave.
j. Remove cylinder sheave.
k. Loosen setscrews on trunnion bearings. Refer
to Figure 16.
l. Pull cylinder through front of cabinet.
NOTE: After reinstalling drive and cylinder belts,
adjust belts.
NOTE: Do not allow cylinder to rest on cabinet
frame. Support cylinder vertically as it is removed
from cabinet frame.
Figure 15
T371PE1B
Tapered
Bushing
Screws
Motor
Pulley
Setscrew