Neles Easyflow RNP Series User Manual

IMO-218 EN - Issue 8/202010
This procedure is applicable with the understanding that all
pneumatic pressure has been removed from the actuator.
Remove all piping and mounted accessories that will interfere with
the module that are to be worked on.
When removing seals from seal grooves; use a commercial seal
removing tool or a small screwdriver with sharp corners rounded o󰀨.
Use a non-hardening thread sealant on all pipe threads.
CAUTION:
APPLY THE THREAD SEALANT AS PER THE
MANUFACTURER’S INSTRUCTIONS.
All parts should be thoroughly inspected for excessive wear, stress
cracking and pitting. Attention should be directed to threads, sealing
surfaces and areas that will subjected to sliding and rotating motion.
Actuator parts that reect any of the above listed characteristics
should be replaced with new parts.
Neles recommends that disassembly of the actuator modules
should be done in a clean area on a workbench.
After reassembly, the actuator needs to be stroke for several times
to ensure the desired function and safety.
If you remove the stop screw, adjust the limits after lubrication or
grease lling!
Before doing maintenance, check actuator for leakage at inlet,
outlet and cover.
NOTE:
IN ORDER TO ENSURE SAFE AND EFFECTIVE
OPERATION, ALWAYS USE ORIGINAL SPARE PARTS
TO MAKE SURE THAT THE ACTUATOR FUNCTIONS AS
INTENDED.
NOTE:
WHEN SENDING GOODS TO THE MANUFACTURER
FOR REPAIR, DO NOT DISASSEMBLE THEM.
NOTE:
FOR SAFETY REASONS, REPLACE BOLTING IF THE
THREADS ARE DAMAGED, HAVE BEEN HEATED,
STRETCHED OR CORRODED.
4.2 MAINTENANCE
PRECAUTIONS OF THE
RNP_E_C AND RNP_E_A
ACTUATOR
CAUTION:
DON’T DISMANTLE A PRESSURIZED ACTUATOR!
CAUTION:
TO RELEASE SPRING TENSION, THE SPRING
DIRECTION STOP SCREW AT THE CENTRAL BLOCK
MUST BE REMOVED BEFORE THE CYLINDER
FASTENING SCREWS ARE OPENED!
CAUTION:
DON’T DISMANTLE THE SPRING PACKAGE!
THE SPRING PACKAGE WITHIN THE CYLINDER IS
PRELOADED. NEVER OPEN OR DISMANTLE THE
SPRING PACKAGE. THE SPRING MODULE IS ALWAYS
DELIVERED AS A PRE-ASSEMBLED PACKAGE.
The actuator has a caution sticker. When servicing the unit, check
that the sticker is in place and legible. See Fig. 6.
Figure 6. Caution sticker of the RNP series size 040 - 110
5. OPERATION
• Actuator is tted with NPT connection.
• Provide air connections using proper ttings.
• Air supply to meet above specications and not to exceed 8 Bar.
• Ensure air supply pressure is regulated to ensure maximum air
supply is not exceeded.
5.1 OPERATING PRINCIPLE
(STANDARD MODE) FOR
DOUBLE ACTING
• Both ports A and B are used as inlet ports.
• When air is supplied to Port A, the pistons are moved away from
each other, and the pinion is rotated CCW.

Neles Easyflow RNP Series Specifications

General

Brand	Neles
Model	Easyflow RNP Series
Category	Controller
Language	English