Vilter VSM 71-701, Руководство по эксплуатации и обслуживанию

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Service
C) On VSM compressors install the bolts in the
discharge flange. Install the drain plug in
the bottom of the discharge manifold.
D) Install both command shaft assemblies and
control actuators as outlined in sections 4.05
and 4.01.
4.11 SLIDE VALVE GEAR AND RACK
INSPECTION
A) Remove the discharge manifold as outlined
in section 4.09
B) Check rack to rack clamp and rack clamp
spacer clearance on all four slide valves.
TABLE 4.1
RACK CLEARANCE VALUES
MEASUREMENT CLEARANCE
Rack to clamp. 0.005 to 0.010”
Rack to clamp spacer. 0.003 to 0.005”
C) Check torque of socket heat cap screws.
D) Check for excessive movement between the
slide valve rack shafts and the rack. The
jam nuts on the end of the slide valve rack
shaft should be tight.
E) Check for loose or broken roll pins in gears.
Loose nuts
Roll pins Rack to
clamp
Rack to
spacer
clamp
Check
on cap
torque
screws
F) Look for any excessive wear on all moving
parts and replace the worn parts.
G) Reassemble the manifold and discharge el-
bow as outlined in section 4.10.
4.12 REMOVAL OF CAPACITY OR
VOLUME CROSS SHAFTS
A) Remove the discharge manifold as outlined
in section 4.09.
B) To remove the capacity or volume ratio slide
valve racks, remove the two jam nuts and lock
washers (361) securing the rack (316) to the
slide valve shafts. The racks can now be
pulled off the slide valve shafts. Repeat the
procedure for the remaining pair of slide valve
racks.
C) To remove the cross shafts, remove socket
head bolts, clamp and spacers from both
sides.