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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.
