Parker HTR Series Datasheet

PM - HTR - C
AutomationActuatorDivision
Wadsworth, Ohio 44281
April 1, 1994
Rev. August 1999
HTR Series Actuators
Maintenance Instructions & Parts List
Provide Model Number and Serial Number When Ordering Spare Parts.
GENERAL
HTR Series Hydraulic Rack & Pinion Actuators are designed
for a maximum operating pressure of 3,000 psi non-shock.
The actuator consists of a Pinion and one or two Racks
located within a Housing. Pressurization of alternate cylinder
port(s) results in shaft rotation.
ThegearchamberhasbeenfilledwithaMolygreasecontain-
ing a minimum Molybdenum Disulfide (MSO2) content of 3%.
In the event that maintenance is required, the following steps
should be used as a guide:
ASSEMBLY AND DISASSEMBLY PROCEDURES
A. Inspection & Replacement of End Cap Seals, #9.
1. Place actuator in the mid-stroke position as shown.
Remove Tie Rod Nuts, #10, from Tie Rods, #13.
2. Pull End Cap, #11, free from Cylinder Tube , #12.
3. Inspect and/or replace End Cap O-Ring, #9.
Lubricate Seal and End Cap before reinstalling.
4. Replace End Cap, #11, on Cylinder Tube, #12, and
assemble Tie Rod Nuts, #10 to Tie Rods, #13.
5. Torque Tie Rod Nuts per table.
B. Inspection & Replacement of Wear Rings, #4, Piston
Seals, #5, and Cylinder O-Ring, #8.
1. Repeat Steps A1 and A2.
For Models HTR75 through HTR 600:
2. Remove Rack Bolt, #7.
3. Screw two (2) threaded rods into the tapped holes
in Piston, #16, and pull free from Cylinder Tube, #12.
For Models HTR.9 through HTR45:
4. Pull Cylinder Tube, #12, free from Housing, #2.
5. Remove Rack Bolt, #7.
For All Models
6. Inspect Piston, #16, and replace Piston Seal, #5.
7. Inspect and/or replace Wear Rings, #4.
8. Inspect and/or replace Cylinder O-Ring, #8.
9. Replace Cylinder Tube, #12 to Housing, #2.
10. Slide Piston, #16, with Piston Seal and Wear Rings
assembled onto it, into Cylinder Tube, #12, until it
contacts Rack, #17.
11.Replace Rack Bolt, #7 and torque per table.
Caution: NylonSlug,#6,isdesignedtoprevent Rack
Bolt from vibrating loose during operation; replace as
required.
12.ReplaceEndCap,#11,and Tie Rod Nuts,#10;torque
per table.
C. Inspection and Replacement of Pinion and Bearing
Retainer O-Rings, #1 and #24.
1. Loosen Lock Screw, #19.
Caution: Failure to do so will damage threads.
2. Using spanner wrench, remove Bearing Retainer,
#25, by turning counter-clockwise.
3. Remove Bearings, #22, and Pinion, #23.
Caution: Make match marks to re-establish the
correct timing.
4. Inspect and/or replace Pinion O-Ring, #1, located at
the "front" or blind side of Housing #2.
5. Reinstall Bearings, #22, and Pinion #23.
6. Inspect and/or replace Bearing Retainer O-Ring,
#24, located on outside diameter of Bearing Retainer,
#25.
7. Inspect and/or replace Pinion O-Ring, #1, located on
inside diameter of Bearing Retainer, #25.
8. Apply Moly Grease to Bearing Retainer Threads and
reinstall into Housing, #2.
9. Torque Bearing Retainer, #25 per table.
10.Install and tighten Locking Screw, #19, per torque
table.
D. Complete Disassembly of Actuator.
1. Repeat Steps A1 and A2.
2. Repeat Steps B2 through B5.
3. Repeat Steps C1 and C3.
4. Caution: Make match marks to re-establish the
correct timing.
5. Push Rack from either end to remove from housing.
E. Reassembly of Actuator.
1. Follow previous procedures for reassembly of all
actuator parts. Refill the gear chamber with Moly
Grease with a minimum MSO2content of 3%; such
as Texaco Molytex EP2.

MODEL TIE ROD NUT #10 RACK BOLT #7
CUSHION PLUG #31 BEARING RETAINER #25 LOCKING SCREW #19
HTR.9/1.8 6 3 15 2
HTR3.7/7.5 15 15 30 4
HTR5/10 15 15 50 4
HTR15/30 30 40 100 4
HTR22/45 45 40 100 4
HTR75/150 130 130 250 15
HTR300/600 525 360 500 15
TORQUE TABLE (LB-FT)
9
8
7
6
4
3
5
5a
11
12
13
14
15
16
17
2
1
18
19 20 21
22
23
22
24
25
1
MODEL ONE COMPLETE TURN OF
ADJ. CAUSES SPECIFIED
CHANGING IN ROTATION
HTR.9/1.8 4.0°
HTR3.7/7.5 3.3°
HTR5/10 2.5°
HTR15/30/22/45 2.0°
HTR75/150 2.0°
HTR300/600 1.2°
MAXIMUM UNIT ROTATION IS EQUAL TO ROTATION
SPECIFIED IN THE MODEL CODE.
ADJUSTERS ALLOW ROTATIONAL POSITIONING EQUAL
TO OR LESS THAN MAXIMUM ROTATION.
10

NOTE:
-Items marked with an asterisk (*) included in a seal
repair kit.
-5a (BACK-UP RING) used only with Viton Seals.
CUSHION OPTION
STROKE ADJUST OPTION
CUSHION AND STROKE ADJUST OPTION
ITEM
NO. DESCRIPTION QUANTITY
26 CUSHION ADJUSTMENT SCREW 1
27 O-RING, ADJUSTMENT SCREW 1
28 RETAINING RING 1
29 END CAP 1
30 CUSHION BUSHING 1
31 CUSHION PLUG 1
32 END CAP 1
33 WASHER 1
34 STROKE ADJUSTER 1
35 THREAD SEAL 1
36 JAM NUT 1
37 STROKE ADJUST BLOCK 1
38 END CAP 1
39 O-RING, STROKE ADJUST BLOCK 1
NOTE:
-Quantities required are per end cap option specified.
Caution: Before making any adjustment, turn off the
hydraulic pressure. Never adjust Cushion Screw out past
flush with End Cap or counterbore.
DO NOT OVERTIGHTEN.
Adjustable cushions are designed to cushion the last 20° of
actuator stroke.
To Adjust:
Using an Allen wrench, turn Adjustment Screw, #13, counter
clockwise for less cushioning.
29
26
27
30
28
31
32
35
33
Caution: Before making any adjustment, turn off the
hydraulic pressure.
To Adjust:
1. Loosen Jam Nut, #31.
2. Turn Stroke Adjusters, #30, CW to reduce
stroke, CCW to increase stroke.
3. Tighten Jam Nut, #31.
4. Resume system pressure.
34
36
34 33 37 26 27 38
28
36 35
39
30
31
ITEM
NO. DESCRIPTION QUANTITY
SINGLE
RACK DOUBLE RACK
1* O-RING, PINION 2 2
2 HOUSING 1 1
3 RACK BEARING 1 2
4* WEAR RING 2 4
5* PISTON SEAL 2 4
5a* BACK-UP RING 2 4
6 NYLOK SLUG 2 4
7 RACK BOLT 2 4
8* O-RING CYLINDER 2 4
9* O-RING, END CAP 2 4
10 TIE ROD NUT 8 16
11 END CAP 2 4
12 CYLINDER TUBE 2 4
13 TIE ROD 8 16
14* O-RING, RACK BOLT 2 4
15* BACK-UP RING, RACK BOLT 2 4
16 PISTON 2 4
17 RACK 1 2
18 RELIEF VALVE 1 1
19 LOCKING SCREW 1 1
20 DRIVE SCREW 4 4
21 NAME PLATE 1 1
22 BEARING 2 2
23 PINION 1 1
24* O-RING, BEARING RETAINER 1 1
25 BEARING RETAINER 1 1

Parker Hannifin Corporation
Automation Actuator Division
135 Quadral Drive
Wadsworth, Ohio 44281
Telephone [phone]
Facsimile 330/334-3335
PROXIMITY SWITCHES
The inductive type proximity switch provides end of rotation
indication. The non-contact probe senses the presence of
the ferrous cushion spear and has no springs, plungers,
cams or dynamic seals that can wear out or go out of
adjustment. The switch is solid state and meets NEMA 1, 12
& 13 specifications. For ease of wiring the connector housing
is rotatable through 360°. To rotate, lift the cover latch,
position, and release.
The standard proximity switch controls 20-230 VAC/DC loads
from 5 to 500 mA. The low 1.7 mA off-state leakage current
can allow use for direct PLC input. The standard short circuit
protection (SCP) protects the switch from a short in the load
or line upon sensing such a condition (5 amp or greater
current) by assuming a nonconductive mode. The fault
condition must be corrected and the power removed to reset
the switch preventing automatic restarts.
The low voltage DC switch is also available for use with 10-
30 VDC. This switch is in a non-rotatable housing, but does
incorporate the short circuit protection.
Both switches are equipped with two LEDs, "Ready" and
"Target". The "Ready" LED is lit when power is applied and
the cushion spear is not present. The "Target" LED will light
and the "Ready" LED will go out when the switch is closed,
indicating the presence of the cushion spear. Both LEDs
flashing indicates a short circuit condition.
NOTES:
1. Availablewithor withoutcushions.
2. Notavailablewithstrokeadjusters.
3. Pressurerating:3000 psi
4. Operatingtemperature: -4°Fto158°F
5. Specifyswitchtype, orientationandvoltage whenordering.
6. The low voltage DC switch is available in non-rotatable style
only;consultrepresentativeforfurtherinformation.
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS AND/OR SYSTEMS DESCRIBED
HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE.
This document and other information from Parker Hannifin Corporation, its subsidiaries and authorized distributors provide
product and/or system options for further investigation by users having technical expertise. It is important that you analyze
all aspects of your application and review the information concerning the product or system in the current product catalog. Due
to the variety of operating conditions and applications for these products or systems, the user, through its own analysis and
testing,issolely responsibleformakingthefinalselectionof theproductsand systemsandassuringthatallperformance,safety
and warning requirements of the application are met.
The products described herein, including without limitation, product features, specifications, designs, availability and pricing,
are subject to change by Parker Hannifin Corporation and its subsidiaries at any time without notice.
WARNING
Additional information may be obtained from Automation
Actuator Division in Wadsworth, Ohio or from the nearest
Automation Actuator Division Representative.
PSK
Parker Seal Kit HTR.9
Base Model V
Omit Standard
V Viton
W Carboxilated Nitrile
(Piston Seals Only)
SEAL KIT ORDERING INFORMATION
-Standard units are equipped with nitrile seals.
- Optional seal compounds are available.
- See parts list for items contained in seal kits.
- Seal kit part numbers as follows:
45
47
46 4041
44
43
42
ITEM
NO. DESCRIPTION QUANTITY
40 PROXIMITY SWITCH 1
41 O-RING, SPACER BLOCK 1
42 BOLT, ADAPTOR BLOCK 4
43 ADAPTOR BLOCK 1
44 O-RING, ADAPTOR BLOCK 1
45 END CAP 1
46 BOLT, SPACER BLOCK 2
47 SPACER BLOCK 1
NOTE:
-Quantities required are per end cap option specified.