Emerson Hytork XL26 Installation, Operation & Maintenance Instructions Manual page 7

Installation Operation & Maintenance Instructions
MAC050515 EN Rev. C
May 2016
11 Testing the HYTORK Actuator
Using compressed air at 80-100 psi (5.5 - 7 bar) check the seal
areas with soapy water, ensuring there are no leaks and that the
Pinion rotates smoothly over its full travel.
11.1 Testing and Cycling of Infrequently Used or Stored
Actuators
Actuators not in current use (i.e. Actuators in storage or stock and/
or not operated for at least a 3 month period), should be cycled a
minimum of ten times and tested against the possible 'pre-set' of
the seals. This is a safety precaution recommended by the Seal
manufacturers.
12 Retractor Rods
12.1 Spring Removal System Board.
HYTORK'S "SPRING REMOVAL SYSTEM BOARD" contains a full
set of Retractor Rods so that any size of Actuator can be disas-
sembled on site.
Standard spare parts kits for XL26 to 221 contain the required Re-
tractor Rods. For XL281 to XL4581 seperate Retractor Rod kits are
available. These Rods are not included in the spare parts kits but are
seperately available.
Ask your local HYTORK representative or Stocking Distributor of
HYTORK Products for details.
Table 5 SAFEKEY Dimensions
Model (in mm)
Length
XL26 157
XL71 217
XL131 267
XL186 282
XL221 317
XL281 367
XL426 377
XL681 437
XL1127 517
XL1372 572
XL2856 707
XL4581 937
Length tolerance : 0 to +5mm / 0" to 0,197"
Diameter tolerance : ±0.05mm / ±0.002"
Figure 7 SAFEKEY Dimensions
(in inches)
Diam. Length
3.175 6.18
3.175 8.54
3.175 10.51
3.175 11.1
3.175 12.48
3.175 14.45
3.175 14.84
3.175 17.2
3.175 20.35
3.175 22.52
3.175 27.83
4.978 36.89
Length
IMPORTANT:
- The HYTORK Retractor Rod tools are specially designed for
the safe removal of the Spring Return End Cap modules. Only
HYTORK manufactured or approved rods are to be used for
Spring End Cap removal.
- As with any threaded tool that is used frequently, Retractor
Rods should be checked to ensure that the threads are not
worn or damaged in any way and greased regularly. Any dam-
aged or worn Rods must not be used and must be destroyed.
- Retractor Rods must be made to the design specification for
safety reasons. EMERSON PROCESS MANAGEMENT can not
take any responsibility for any other design.
13 Service
It is the policy of Emerson Process Management to give the best
possible service to our customers. We are happy to assist you in any
way we can and if you have any questions about HYTORK Actuators
or other HYTORK Products please do not hesitate to contact any
Valve Automation Center of Emerson Process Management or your
local HYTORK Stocking Distributor.
Thread
Diam.
0.125 1/4-20 UNC
0.125 1/4-20 UNC
0.125 1/4-20 UNC
0.125 1/4-20 UNC
0.125 5/16-18UNC
0.125 M10
0.125
0.125 M12
0.125 M12
0.125 M12
0.125 M20
0.196 M20
Diameter Thread
Figure 8 Retractor Rod Dimensions
Hytork XL
Length
mm.
215
215
215
215
225
210
M8 278
363
416
416
500
600
Length
Length tolerance : 0 to +1mm / 0" to 0.04"
inch)
8.46
8.46
8.46
8.46
8.86
8.27
10.94
14.29
16.38
16.38
19.69
23.62
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