MHS Boilers XenoROL XR40, Инструкция по установке, эксплуатации и обслуживанию, Страница: 63 / 84

XenoROL®
63
WARNING
REINSTALL ALL GUARDS.
As with all rotating machinery, the line-
shaft,couplers and U-joints present the
possible dangerof entangling hair, fingers,
jewelry or clothing.
CHAIN/SPROCKET REPLACEMENT ON LINE-
SHAFT
1. Shut off and lock out power supply to area of
requiredmaintenance.
2. To provide access, remove necessary rollers.
3. Remove line-shaft guard.
4. Disassemble any components involved with
the operation of the line-shaft, slave drive,
chains, couplers, etc.
5. Remove chain with roller chain pin extractor.
6. Unbolt the bearing housings from the
crossmembers.
7. With line-shaft removed, loosen the eccentric
cam collars and coupler chain on the side
closest to the sprocket to be removed.
8. Remove all components up to the sprocket
being replaced.
9. Loosen set screws on sprocket and remove.
10. Place new sprocket on shaft with keyway
aligned and key installed.
11. Remount line-shaft to conveyor bed and
properly align sprockets with straight edge
against the face of both sprockets.
12. Tighten set screws to specification.
13. Reassemble all components in reverse of
disassembly.
14. Reassemble coupler chain around coupler
sprockets.
15. Double check tightness of all fasteners.
16. Properly tension chain.
17. Recheck alignment of sprockets.
18. Reinstall chain guard.
19. Reinstall line-shaft guard.
UNIVERSAL JOINTS
U-joints are primarily used to "bend" the line-shaft in
the XenoROL System both horizontally and
vertically. They are used in curves, diverter spurs,
merges and small incline or decline angles.
To ensure proper lubrication of all four bearings,
pump lubricant slowly until it appears as a slight
bead at all journal cross bearing seals. This assures
removal of dirt particles and other contaminants that
may find their way into the bearings and indicates
that the bearings are fully lubricated. In addition this
provides additional protection against the entry of
foreign matter.
For universal joint application involving speeds
below 500 RPM (approximately 200 FPM), a mineral
oil in the SAE 140 to SAE 250 viscosity range
should be used.
Grease in the bearing prevents excessive wear of
parts, protects ball races, balls, etc. from corrosion,
and aids in heat dissipation within the bearing.
Disassembly/assembly procedure as follows:
1. To provide access to maintenance area,
remove necessary rollers.
2. Remove line-shaft guarding in area requiring
maintenance.
3. Loosen set screws on the universal joint and
remove from shaft.
4. Replace universal.
5. Reverse above procedures for assembly.
6. Torque 3/8-16 set screws to 23 ft.lbs.
Ref. universal joint "phasing" page 21.
LINE-SHAFT BEARINGS (STANDARD)
Line-shaft bearings have an eccentric camlock set
collar to secure the inner bore to the line-shaft. After
one week of constant operation, check each bearing
to see if the lock collar is tight.
If a collar is loose:
1. Push and rotate the collar onto the eccentric
hub.
2. Twist the collar in the direction of shaft
rotation.
3. Set the collar by using a punch or set screw
wrench with a light tap in the nonthreaded
hole.
4. Tighten set screw (1/4-20 to 6 ft.lbs.)
5. Recheck every six months.
To replace any worn or damaged bearings, the drive
shaft must be removed from the conveyor. Follow
the same procedures as sprocket replacement. Any
burrs caused by locking set screws should be
removed before sliding bearings or spools off the
drive shaft.
Before reassembly the line-shaft must be cleaned.
Be sure the shaft is dry before reinstalling bearings
and spools.
CAUTION
The line-shaft will fall unless supported or held
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