MHS Boilers XenoROL XR40, Инструкция по установке, эксплуатации и обслуживанию, Страница: 67 / 84

XenoROL®
67
XenoBRAKES may be used to hold product back
until line pressure is great enough to overcome the
coefficient of friction between the product and the
roller surface. They are also used to create zero
pressure zones with individual sensor controls.
The brake is adjusted during installation so that the
brake comes up against the rollers evenly. This
adjustment is made by adjusting the jam nuts on the
air cylinder and/or the mounting brackets to frame
connection. The air cylinders operate at 60 PSI.
•Shut off air supply.
•To provide access, remove necessary rollers.
•Remove air cylinder air lines.
•Remove the bolts holding brake to side channel of
conveyor.
•Remove the brake channel.
•Remove the air cylinder jam nut.
•Remove air cylinder.
•Replace air cylinder.
•Reverse procedures for assembly.
SOLENOID VALVES
In order to minimize downtime, it is normally not
feasible to repair malfunctioning electrical or valve
components while leaving the conveyor unusable.
Spare components should be kept in stock for
emergency replacement. If feasible, the part may be
repaired later to replace maintenance stock. Items,
which cannot be readily repaired or are
questionable, should be re-placed. Components
under warranty should not be re-paired except in an
emergency
Valve Removal and Replacement
--Open the wire cover for the manifold on which
defective valve is mounted.
--Remove solenoid wires from their terminals.
--Loosen and remove two Allen head screws on top
of valve body.
--Remove valve and gasket from subbase.
--Install replacement valve and existing gasket in
reverse order.
Coil Replacement
--Loosen straight-slot screws on capsule assembly.
--Remove defective solenoid coil, pulling wires
through the valve. Be careful not to damage paper
gasket positioned between coil and valve body.
--Route wires of new coil assembly through valve
body and paper gasket, and trim to proper length.
--Attach new coil using straight-slot screws
Valve Body Overhaul
--Remove coils as described above.
--Carefully remove detent body, spool and spring,
noting their orientation. (For double solenoid,
remove detent assembly and spool.)
--Use a blunt plastic probe (pen) to push spring
retainer through valve body. This will remove both
spring retainer and sleeve assembly. (For dual
solenoid, push bumper to remove sleeve.)
Note: Sleeves are not interchangeable.
--Clean and lubricate spool and sleeve per
accompanying repair kit instructions, and replace all
seals.
--Install spring retainer in valve body.
--Assemble detent body to cleaned spool/sleeve
assembly and install spring in end of spool (single
solenoid only).
--Push cleaned spool/sleeve assembly into valve
body until detent body is sealed.
--Replace coil(s) as described in paragraph above
WARNING
Before removing a valve or other pneumatic
component, shut off and exhaust the entire
pneumatic circuit and shut off and lockout electrical
supply.
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