background image

Tolomatic • URL: http://www.tolomatic.com • Email: [email protected] • Fax: (763) 478-8080 • Toll Free: 1-800-328-2174

Parts Sheet #3600-4011_18_BCS10ps

Parts Sheet #3600-4011_18_BCS10ps

 

BCS10/MCS10

 

Instructions – 3

Christo-Lube® is a registered trademark of Lubrication Technology, Inc., www.lubricationtechnology.com

Loctite® is a registered trademark of the Loctite Corporation, www.loctite.com

INTRODUCTION

Begin with a clean work area. Be sure all parts are present and 

have no visual damage or defects. The following tools are recom-

mended for proper disassembly and assembly (exact wrench 

sizes will vary depending upon cylinder size):

    Tin Snips 

    Allen Wrench Set 

    Open-end or Box Wrenches and/or Sockets 

      

DISASSEMBLY INSTRUCTIONS
1. REMOVE CARRIER: 

Remove Bolts (#14), Washers (#28) and 

Nuts (#27). Remove Carrier (#26) from Bracket (#8) by removing 

Screw (#29). Remove Spring (#24), Band Insert (#23), and End 

Cap (#22) by removing Screws (#20 and 21) at each end of 

Carrier. Remove Bearing Rods (#25). Remove carrier (#26).

2. REMOVE DUST BAND: 

 Loosen Clamp Slug (#19) holding Band 

by loosening Set Screw (#17). Remove two Screws (#16) securing 

Band Clamp Assembly (#18). Remove Band Clamp 

Assembly (#18) from top of Slug, then remove Clamp Slug from 

top of Band (next to Head). IMPORTANT NOTE:  Edges of Dust 

Band are SHARP — Use caution when handling to avoid injury! 

Carefully pull the Dust Band (#15) from the Tube (#9) and through 

the Nut Bracket Assembly (#10)

3. DISASSEMBLE UNIT.
 

Remove the four Bolts (#1) from both heads (5). Remove the 

lock nut (2) from the “live side” of the lead screw. Remove the 

“live side” head w/ bearing (4). Remove the Plug (#13) from the 

“dead side” head. Push ring cup (#11) to expose Retaining 

Ring (#12) and remove retaining ring from groove of Lead 

Screw (#6). Remove ring cup and head w/ bearing. Slide lead 

screw w/ nut bracket (#8) and Ball Nut (#7) out of Machined 

Tube (#9).

 A.

  Ball Nut Style:  

DO NOT REMOVE NUT BRACKET w/ 

BALL NUT FROM LEAD SCREW (balls will fall out).

 B. 

Plastic Nut Style:

  Remove nut bracket w/ lead screw 

nut from lead screw.

4. HEAD SUB-ASSEMBLY:

  If necessary, carefully remove 

Bearings (#4) from both Heads (#5).

5. SUB-ASSEMBLIES:
  Ball Nut Style:

 Caution is required if removal of nut is neces-

sary. Contact the factory for available parts and procedures.

  Plastic Nut Style:

 Plastic nuts are factory pressed into the Nut 

Bracket and cannot be removed. If nuts are worn, a new Nut 

Bracket Assembly must be ordered.

 

ASSEMBLY INSTRUCTIONS 

1. AREA PREPARATION:  

Ensure all parts are present and have 

no visual damage or defects.

2. PREPARE HEAD SUB-ASSEMBLY:

  Carefully install Bearings (#4) in 

both Heads (#5).

3. ASSEMBLE UNIT:

  A.

  Ball Nut Style:

  Grease Lead Screw (#6) with Mobil HP 

Multi-purpose grease. Install Lead Screw in machined 

tube. Place Head (#5) on “dead” end of Lead Screw (non-

threaded end). Secure with Ring Cup (#11) and Snap 

Ring (#12). NOTE:  Make sure the Snap Ring is properly 

seated in groove on the Lead Screw, then pull Ring Cup 

over Snap Ring. Install second Head, and Nut (#2). Snug up, 

but do not tighten the four Bolts (#1) on each Head. Place 

an End Plug (#13) in the “dead” side Head.

 B.

  Plastic Nut Style:

  Grease Screw (#6) with Christolube® 

MCG405, assemble Nut Bracket to Screw with the Nut 

end facing the “live” end (threaded end) of the Screw. 

Install Screw in machined tube. Place Head on “dead” 

end of Screw (non-threaded end). Secure with Ring Cup 

(#11) and Snap Ring (#12). NOTE:  Make sure the Snap 

Ring is properly seated in groove on the lead Screw, then 

pull Ring Cup over Snap Ring. Install second Head and 

Nut (#2). Snug up, but do not tighten the four Bolts (#1) 

on each Head. Place an End Plug (#13) in the “dead” 

side Head. 

4. INSTALL CARRIER: 

 Thread one end of Band (#15) through 

slot in Bracket (#8) and press down on Band (#15) to seat in 

tube. Place Carrier (#26) on Tube and align with Nut Bracket. 

Install Bearing Rods (#25). Secure Spring (#24), Band 

Insert (#23), and End Cap (#22) in place by tightening 

Screws (#20 and 21) with Loctite #242 to each end of Carrier. 

Secure Carrier in Bracket by tightening Screws (#29) with 

Loctite #242. Install Bolts (#14), Washers (#28) and Nuts (#27). 

Snug up the bolts only. 

NOTE:

  “Snug” means no noticeable 

end play by hand. If a wrench is applied to either end, both 

ends will turn. 

5. ALIGN HEADS: 

 Place Carrier next to each Head then tighten 

the four Head Bolts (#1) to assure proper alignment of Head 

and Carrier. 

(

¡

When replacing the head bolts in actuators manu-

factured prior to July 1, 2006, the hole for the head bolt will 

need to be drilled 0.4" [10mm] deeper to accommodate the 

longer screw length.)

 

HEAD TORQUE REQUIREMENTS

     

Cylinder Size 

In-Lbs of Torque

    

1" 

70-80 

  

1-1/2" 

100-110 

  

2" 

180-195

6. TRIM AND SECURE DUST BAND: 

 Locate on one Head a 

Slug (#19) and Band Clamp Assembly (#18). (NOTE: Width of 

Slug should match dust Band width.) Tighten with Screw (#16) 

and Loctite #242. Insert one end of Dust Band (#15) under 

Band Clamp assembly and Slug until it is tight to the Head. 

Install Set Screw (#17) into Band Clamp assembly and tighten 

against Slug. 

  With tin snips, cut the end of the Band so it nearly butts to the 

other Head. Place Clamp Slug (#19) on top of Band (next to 

Head), then place Band Clamp Assembly (#18) over Slug. 

Tighten to Head with two Screws (#16) and Loctite #242. Install 

Set Screws (#17).

7. TEST PROCEDURE:

  The torque required to rotate the Lead 

Screw (#6) should not exceed the following limits.

MAXIMUM BREAKAWAY REQUIREMENTS:

     

Cylinder Size 

Torque

     

1" 

25 ounce-inches 

   

1-1/2"  

30 ounce-inches 

   

2" 

45 ounce-inches 

    Check and/or readjust unit to conform to specification 

requirements. Retest.

8. CLEAN UNIT THOROUGHLY BEFORE INSTALLING.

Reviews: