Parker ERV, ERV56, ERV80 Maintenance Manual
Bulletin PM-ERV-B/USA
Maintenance
Instruction &
Parts List
Revision Date: September 2005
Supersedes: April 2002
ERV Series
Value Line Rodless
Linear Actuator
PM-ERV-B/USA
Maintenance Instructions & Generic Parts List
ERV Series Actuator
WARNING
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 systems 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, is solely
responsible for making the final selection of the products and systems and assuring that all performance,
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
Offer of Sale
The items described in this document are hereby offered for sale by Parker Hannifin Corporation, its
subsidiaries or its authorized distributors. This offer and its acceptance are governed by the provisions
stated on the separate page of this document entitled “Offer of Sale”.
2 Parker Hannifin Corporation
Actuator Division
Wadsworth, OH 44281
PM-ERV-B/USA
Maintenance Instructions & Generic Parts List
ERV Series Actuator
Description Page Number
General 3
Exploded Actuator View 4
Carriage Assembly & Carriage Preload Adjustment 4
Carriage Drive Belt Tension 5
Lubrication 6
Actuator Mounting 6
Roller Wheel Wiper Accessory 6
Bumper Accessory 7
Hall Effect & Reed Switches 7
Fastener Torque Table 8
Generic Parts List 9
Offer of Sale 10
General
This guide contains maintenance instructions, replacement parts information, and information on various
actuator options. Consult the factory or the Product Catalog for additional information.
ERV Series Linear slides are electromechanical belt driven actuators. The mechanical capabilities and
response of the units are greatly dependent on the entire drive train system including the motor or motor and
gearbox combination.
In both size units an extended carriage option is offered. This option increases the actuator carriage length
and significantly increases the load carrying capacity of the carriage. Please note that this option does not
alter the actuator body. The body may require additional support along its length.
See the Product Catalog for additional design considerations.
3 Parker Hannifin Corporation
Actuator Division
Wadsworth, OH 44281
PM-ERV-B/USA
Maintenance Instructions & Generic Parts List
ERV Series Actuator
Exploded View
6
5
4
3
8
1
11
12
23
7
21
24
2
9
10
11
12
22
18
21
18
20
19
13
14
15
16 17
Carriage Assembly & Preload Adjustment
When the actuators come from the factory the carriage wheels will be preloaded. If over the course of time
the actuator becomes damaged or the preload is lost the wheels can be easily adjusted or if necessary
replaced in the following manner.
1. Use good general safety guide lines when working on any type of machinery
2. Review the specific application for any potential personal injury and property damage while
servicing the actuator.
3. Disconnect all power to the actuator.
4. If the actuator is equipped with end of travel bumpers, remove the bumper assemblies on the idler
(not the motor) end of the actuator.
5. Disconnect the carriage from the shuttle by removing the three carriage bolts (8).
6. Roll the carriage off the end of the body extrusion. Note, the actuator is designed so that the
carriage assembly can be removed for carriage maintenance purposes without disturbing the drive
belt tension.
20
13
17
19
25
16
26
17
*** DO NOT REMOVE THE CARRIAGE ROLLER WHEELS FROM THE CARRIAGE AT THIS TIME ***
7. Review the hex nuts/roller cams (5) on the carriage. Take special note that on half of the hexes the
bolt is off center inside the hex. These are the cams that produce the preload in the carriage. The
other half of the hexes have the bolts in the center. These are the main load bearing roller wheels.
8. Use a removable marker of some type to identify what locations on the carriage use the off center
cams. This will help you to put the carriage back together the same way (i.e. positively or
negatively loaded carriage – see the product catalog for a description).
4 Parker Hannifin Corporation
Actuator Division
Wadsworth, OH 44281
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