Nexen RPS16G-C0070T/360-EP2U 966554 - Manual (Page 15)

15 FORM NO. L-21252-B-1209
DISENGAGING THE ROLLER PINION
1. De-couple the load from the RPG system.
2. Disconnect the power source, ensuring that no torque
is applied to the roller pinion.
3. Remove pinion preload by loosening the preload
mechanism sliding bolts slightly and then turning the
preload application screw(s) to remove the pinion
preload. You should be able to slightly separate the
pinion from the gear teeth now.
WARNING
Failure to properly support the load be-
fore disengaging the RPG system could
cause serious harm to operators or
equipment.
4. Progressively loosen non-adjacent bushing fasteners
in the same order they were tightened until all are
removed from the bushing (Refer to Figure 11).
5. Insert the bushing fasteners into the threaded holes
in the bushing flange and alternately tighten them as
illustrated in Figure 11 to release the locking action
of the bushing.
6 Lift the servo/reducer/preload mechanism assembly
from the gear or slide the servomotor/reducer out of
the pinion bore.
NOTE: Inspect all bushing fasteners and replace any that
show excessive wear. Contact Nexen for replacements.
OPERATION
DANGER
This product has moving parts that can
crush or cut appendages. Provide ad-
equate spacing or guarding from any
operating product.
WARNING
Never exceed maximum operat-
ing speeds listed for your product.
(See Table 7).
WARNING
Ensure proper guarding of the product is
used. Nexen recommends the machine
builder design guarding in compliance with
OSHA 29 CFR 1910 “Occupational Safety
and Health Hazards”.
WARNING
Use appropriate guarding for rotating
components. Failure to guard could re-
sult in serious bodily injury.
RPG Maximum Speeds*
Product Tangential Speed Pinion RPM
RPG16
4 m/s
[13.1 ft/s]
1500
RPG20
5 m/s
[16.4 ft/s]
1500
RPG25
8 m/s
[26.2 ft/s]
1920
RPG32
11 m/s
[36.1 ft/s]
1719
RPG40
6 m/s
[19.7 ft/s]
750
RPG4014
6 m/s
[19.7 ft/s]
643
* Standard RPG speed ratings, specials can vary. Review
Nexen specifications for your specific product number.
Table 7