BLACKMER HD942A, Инструкции по установке, эксплуатации и обслуживанию

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VALVE REPLACEMENT
CB9A-030 page 19/28
Suction and discharge valves MUST be installed in the
correct cylinder head locations. See Figures 11 & 12.
Hazardous pressure
can cause serious
personal injury or
property damage
Failure to install compressor valves
properly can lead to component failure,
personal injury or property damage.
Hazardous gases
can cause property
damage, personal
injury or death
Failure to install compressor valves
properly can result in leakage of
explosive gas creating an explosion
hazard, possibly causing severe
personal injury or death.
Hazardous gases
can cause property
damage, personal
injury or death
Failure to install compressor valves
properly can result in extreme
discharge temperatures. This could be
an ignition source in the presence of
explosive gas possibly causing severe
personal injury or death.
1. Remove the valve cap and O-ring from each valve.
2. Remove the valve hold down screw with a spanner
wrench (Blackmer PN 790535).
3. VALVE REMOVAL
a. Remove the valve cover plate capscrews then
lift off the cover plate and O-ring.
b. Remove the cage, (and unloader plunger) valve
assembly and valve gasket.
c. Inspect the valve for wear or breakage.
4. VALVE REPAIR
a. Remove hex nut from valve (after removing the
unloader actuator, retaining ring, actuator,
spring, and post).
b. Separate the valve halves and remove springs
and plate.
c. Inspect and replace worn components.
d. Reassemble valves as shown in the drawings
and tighten the valve assembly nut per Table 7
- "Bolt Torque."
5. VALVE INSTALLATION
The pistons should be installed and the proper
piston clearance set
before the valves are installed.
a. Remove the old gasket and install a new valve
gasket into the cylinder head.
b. Install the valve assembly in the cylinder head.
Make sure the valve's orientation and location
are correct.
c. Hold the valve in place with a socket and
extension for steps d - f.
d. Center the valve cage on the valve assembly.
e. Remove the valve hold down screw from the
cover plate, then install the valve cover plate
with a new O-ring. Tighten the cover plate
capscrews according to Table 7 - "Bolt Torque."
f. Install the hold down screw and tighten
according to Table 7 - "Bolt Torque."
g. If suction valve unloaders are used: Install the
unloader plunger through the hold down screw.
h. Install the valve cap and O-ring.
6. After replacing the valves, rotate the flywheel by
hand to check for interference between the pistons
and the valves.
7. After 60 minutes of running time, remove the valve
cap and retorque the hold down screw. Replace
the valve cap and O-ring.
Figure 13 – Ductile Iron / PEEK Valve Detail
Figure 14 – Stainless Steel Valve Detail