About the Manual Identifying Information on the Cover
The front cover displays pertinent identifying information for this manual. Most important, are
the published manual number (part number) /ECN (date code). Generally, when a replacement
manual is furnished, it will have the same published manual number, but the latest available ECN.
This provides the user with the latest information applicable to his machine. Similarly all
documents comprising the manual will be the latest available as of the date the manual was
printed, even though older ECN dates for those documents may be listed in the table ofcontents.
When communicating with the Milnor factory regarding this manual, please also provide the
other identifying information shown on the cover, including the publishing system, access date,
and whether the document ECN’s are the latest available or exact.
References to Yellow Troubleshooting Pages
This manual may contain references to “yellow pages.” Although the pages containing
troubleshooting procedures are no longer printed on yellow paper, troubleshooting instructions, if
any, will be contained in the easily located “Troubleshooting” chapter or section. See the table of
contents.
Trademarks of Pellerin Milnor Corporation
The following, some of which may be used in this manual, are trademarks of Pellerin Milnor
Corporation:
Help us to improve this manual by sending your comments to:
Pellerin Milnor Corporation
Attn: Technical Publications
P. O. Box 400
Kenner, LA 70063-0400
Fax: (504) 469-1849
Table of Contents
for MAP30C4EAE/2006296A
30015/30022 C4E
PageDescriptionDocument/ECN
1About This ManualMHP30RM1AE/9541AV
3WarrantyBMP720097/92732A
5How to Order PartsBMP720097R/72332A
6Guards & CoversBMP020067/2002512V
8About the Forces Transmitted by Milnor Washer-ExtractorsBIWUUI02/20001108
10Glossary of Tag Illustrations-30" G, T and V style WEMSIUUMTGAE/2004072V
15Avoiding Damage from Allied Remote Chemical
91Drain Sump InstallationBMP920014/2004055V
92Drain Valve InstallationBMP020057/2004055V
943" Electric Drain ValveBMP920017/2006214B
ABOUT THIS MANUAL
1
MHP30RM1AE/9541AV (1 of 1)
Scope
—This instruction manual is intended to provide preventive maintenance procedures, service procedures, and mechanical parts identification for all Milnor® 30015, 30020, and 30022 model rigid mount
washer-extractors. Measurements are in commonly used US and metric units unless otherwise noted.
See the appropriate programming, operating, and troubleshooting manual for inform ation on the control
system. See the schematic manual for electrical parts identification and electrical troubleshooting.
Manual Number/Date Code (When To Discard or Save)
—The manual number/date code
is located on the inside front cover, upper right corner just above the manual name. Whenever the manual is
reprinted with new information, part of this number changes. If the date code after the “/” changes , the new
version applies to all machines covered by the old version, but is improved— thus the old version can
be discarded. If the manual number before the “/” changes, the new manual covers only new machines.
Example: Discard MATMODELAE/8739CV when MATMODELAE/8739DV is received (minor improvements). Also, discard MATMODELAE/87
V when MATMODELAE/87
39D
V is received (major im-
46A
provements). But keep MATMODELAE/8746FV when MATMODELBE/8815AV is received, since the
new manual no longer applies to machines originally shipped with the old manual.
Documents and Change Bars
—The individual documents comprising this manual use the same
revision criteria as the manual. Text documents also display change bars. Example: When section
MSOP0599AE/9135BV becomes MSOP0599AE/9135CV, change bars with the letter “C” appear next to all
changes for this revision. For a major rewrite (e.g., MSOP0599AE/92
For Assistance
—Please call:
V), all change bars are deleted.
26A
Trademarks of Pellerin Milnor Corporation
—The following, some of which may be used in
this publication, are trademarks of Pellerin Milnor Corporation:
Ampsaver
Autolint
®
Auto-Purge
Autovac
®
®
®
CBW
Dye-Extractor
Dyextractor
E-P Plus
®
®
®
Hands-Off
Hydro-Cushion
Gear Guardian
Mildata
®
®
®
®
Milnet
Milnor
Miltrac
Miltron
®
®
Staph-Guard
System 4
System 7
Totaltrol
®
®
®
®
2
3(//(5,10,/125&25325$7,21
3 4
/,0,7('67$1'$5':$55$17<
We warrant to the original purchaser that MILNOR machines including electronic
hardware/software (hereafter referred to as “equipment”), will be free from defects in material
and workmanship for a period of one year from the date of shipment from our factory with no
operating hour limitation. This warranty is contingent upon the equipment being installed,
operated and serviced as specified in the operating manual supplied with the equipment, and
operated under normal conditions by competent operators.
Providing we receive written notification of a warranted defect within 30 days of its discovery,
we will – at our option – repair or replace the defective part or parts, FOB our factory. We
retain the right to require inspection of the parts claimed defective in our factory prior to
repairing or replacing same. We will not be responsible, or in any way liable, for unauthorized
repairs or service to our equipment, and this warranty shall be void if the equipment is repaired
or altered in any way without MILNOR’s written consent.
Parts which require routine replacement due to normal wear – such as gaskets, contact points,
brake and clutch linings and similar parts – are not covered by this warranty, nor are parts
damaged by exposure to weather or to chemicals.
We reserve the right to make changes in the design and/or construction of our equipment
(including purchased components) without obligation to change any equipment previously
supplied.
ANY SALE OR FURNISHING OF ANY EQUIPMENT BY MILNOR IS MADE ONLY UPON
THE EXPRESS UNDERSTANDING THAT MILNOR MAKES NO EXPRESSED OR IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR USE OR
PURPOSE. MILNOR WILL NOT BE RESPONSIBLE FOR ANY COSTS OR DAMAGES
ACTUALLY INCURRED OR REQUIRED AS A RESULT OF: THE FAILURE OF ANY OTHER
PERSON OR ENTITY TO PERFORM ITS RESPONSIBILITIES, FIRE OR OTHER HAZARD,
ACCIDENT, IMPROPER STORAGE, MISUSE, NEGLECT, POWER OR ENVIRONMENTAL
CONTROL MALFUNCTIONS, DAMAGE FROM LIQUIDS, OR ANY OTHER CAUSE BEYOND
THE NORMAL RANGE OF USE. REGARDLESS OF HOW CAUSED, IN NO EVENT SHALL
MILNOR BE LIABLE FOR SPECIAL, INDIRECT, PUNITIVE, LIQUIDATED, OR
CONSEQUENTIAL COSTS OR DAMAGES, OR ANY COSTS OR DAMAGES WHATSOEVER
WHICH EXCEED THE PRICE PAID TO MILNOR FOR THE EQUIPMENT IT SELLS OR
FURNISHES.
WE NEITHER ASSUME, NOR AUTHORIZE ANY EMPLOYEE OR OTHER PERSON TO
ASSUME FOR US, ANY OTHER RESPONSIBILITY AND/OR LIABILITY IN CONNECTION
WITH THE SALE OR FURNISHING OF OUR EQUIPMENT TO ANY BUYER.
BMP720097
92732A
How to order repair parts
5
Repair parts may be ordered either from the authorized dealer who sold you this
machine, or directly from the MILNOR factory. In most cases, your dealer will
have these parts in stock.
When ordering parts, please be sure to give us the followin g information:
1. Model and serial number of the machine for which the parts are required
2. Part number
3. Name of the part
4. Quantity needed
5. Method of shipment desired
6. In correspondence regarding motors or electrical controls, please include all
nameplate data, including wiring diagram number and the make or
manufacturer of the motor or controls.
All parts will be shipped C.O.D. transportation charges collect on ly.
Please read this manual
It is strongly recommended that you read the installation and operating manual
before attempting to install or operate your machine. We suggest that this manual
be kept in your business office so that it will not become lo st.
PELLERIN MILNOR CORPORATION
32%2;.(11(5/$ 86$
FAX: Administration 504/468-9307, Engineering 504/469-1849, Service 504/469-9777
NOTE: KEEP DUST COVER IN PLACE AT ALL TIMES. REMOVE FOR
SERVICING. BEHIND THIS COVER ARE THE BEARING
HOUSING FILL AND DRAIN TUBES.
5
DUST COVER
About the Forces Transmitted by Milnor® Washer-extractors
2
8
8
8
U
8
About the Forces Transmitted by Milnor
Washer-extractors
During washing and extracting, all washer-extractors transmit both static and dynamic
(cyclic) forces to the floor, foundation, or any other supporting structure. During washing, the
impact of the goods as they drop imparts forces which are quite difficult to quantify. Size for size,
both rigid and flexibly-mounted machines transmit approximately the same forces during
washing. During extracting, rigid machines transmit forces up to 30 times greater than equivalent
flexibly-mounted models. The actual magnitude of these forces vary according to several factors:
• machine size,
• final extraction speed,
• amount, condition, and type of goods being processed,
• the liquor level and chemical conditions in the bath preceding extraction, and
• other miscellaneous factors.
Estimates of the maximum force normally encountered are available for each Milnor
and size upon request. Floor or foundation sizes shown on any Milnor
on-grade situations based only on previous experience without implying any warranty, obligation,
or responsibility on our part.
1.
Rigid Machines
Size for size, rigid washer-extractors naturally require a stronger, more rigid floor,
foundation, or other supporting structure than flexibly-mounted models. If the supporting soil
under the slab is itself strong and rigid enough and has not subsided to leave the floor slab
suspended without support, on grade installations can often be made directly to an existing floor
slab if it has enough strength and rigidity to safely withstand our published forces without
transmitting undue vibration. If the subsoil has subsided, or if the floor slab itself has insufficient
strength and rigidity, a deeper foundation, poured as to become monolithic with the floor slab,
may be required. Support pilings may even be required if the subsoil itself is “springy” (i.e., if its
resonant frequency is near the operating speed of the machine). Above-grade installations of rigid
machines also require a sufficiently strong and rigid floor or other supporting structure as
described below.
®
Document..................... BIWUUI0
Specified Date.................2000110
As-of Date.......................2000110
Access Date..................... 2000110
Applicability...........................WU
®
®
document are only for
model
2.
Flexibly-mounted Machines
Size for size, flexibly-mounted machines generally do not require as strong a floor,
foundation, or other supporting structure as do rigid machines. However, a floor or other
supporting structure having sufficient strength and rigidity, as described in section 3, is
nonetheless vitally important for these models as well.
3.
How Strong and Rigid?
Many building codes in the U.S.A. specify that laundry floors must have a minimum live
load capacity of 150 pounds per square foot (732 kilograms per square meter). However, even
compliance with this or any other standard does not necessarily guarantee sufficient rigidity. In
any event, it is the sole responsibility of the owner/user to assure that the floor and/or any other
supporting structure exceeds not only all applicable building codes, but also that the floor and/or
any other supporting structure for each washer-extractor or group of washer-extractors actually
has sufficient strength and rigidity, plus a reasonable factor of safety for both, to support the
9
weight of all the fully loaded machine(s) including the weight of the water and goods, and
including the published 360º rotating sinusoidal RMS forces that are transmitted by the
machine(s). Moreover, the floor, foundation, or other supporting structure must have sufficient
rigidity (i.e., a natural or resonant frequency many times greater than the machine speed with a
reasonable factor of safety); oth erwise, the m enti oned 360º ro ta ting sinuso ida l RMS forces can be
multiplied and magnified many times. It is especially important to consider all potential vibration
problems that might occur due to all possible combinations of forcing frequencies (rotating
speeds) of the machine(s) compared to the natural frequencies of the floor and/or any other
supporting structure(s). A qualified soil and/or structural engineer must be engaged for this
purpose.
Figure 1: How Rotating Forces Act on the Foundation
Typical Machine
A.
Direction of force
B.
Load
C.
Rotation (Frequency = RPM / 60)
Figure 1 above is intended to depict both on-grade and above-grade installations and is
equally applicable to flexibly-mounted washer-extractors, as well as to rigid models installed
either directly on a floor slab or on a foundation poured integrally with the slab. Current machine
data is available from Milnor
have changed since last printed. It is the sole responsibility of every potential owner to obtain
written confirmation that any data furnished by Milnor
number(s) of the specific machines.
Legend
®
upon request. All data is subject to change without notice and may
®
applies for the model(s) and serial
— End of BIWUUI02 —
<B8DD<C604!#&!E
7
\_ccQbi_VDQW9\\ecdbQdY_^c±
7Cdi\U# DCdi\U# FCdi\U
GQcXUb5hdbQSd_bc
Illustration ExplanationIllustrationExplanation
Stop! Read the manual first for complete
instructions before continuing.
Do not jack the machine here.
Do not lift the machine here.
Use three point or four point lifting as
determined by the lifting eyes furnished. Rig
the load using lifting cables of sufficient size
and length to ensure cables are not
over-stressed.
Do not lift the machine from one corner or one
side edge.
10
Do not start this machine until the packing
materials, lifting brackets, etc. with this tag
attached or behind this panel are removed.
These materials are painted red. Safety stands
or brackets (also painted red) may be provided
with this machine. Do not discard safety
stands or brackets
This motor or pump should rotate in the
direction of the arrow.
Do not start this machine until the part with
this tag is installed on the machine.
Do not remove this component from the
machine.
11
IllustrationExplanationIllustrationExplanation
Install the appropriate part here before
operating the machine.
During drain and extract, the cylinder must
rotate counterclockwise when viewed from
here (rear of machine).
Make cold water connection here.
Make hot water connection here.
H0
2
H0
2
H0
2
H0
2
12
Make third (reuse) water connection here.
Make flushing water connection here.
Do not strike shell front of washer-extractors
during fork lifting. Striking shell front will
cause door to leak.
Water hammer will rupture the water inlet
valves on this machine. Eliminate water
hammer on waterlines to this machine. Follow
all applicable codes when installing water
hammer arresters on water lines.
H0
2
H0
2
13
Excessive water temperture will damage
valves. Do not e xceed 160 degrees Fahrenheit
(71 degrees Celsius).
Excessive air pressure will damage valves.
Do not exceed 80 psi (5.5 bar).
Avoiding Damage From Allied Remote Chemical Delivery
Systems
Milnor® does not manufacture or supply remote chemical delivery systems and this document is
meant only to illustrate some of the possible problems that can be minimized during installation
of such systems by the chemical supply company. Milnor washer-extractors and CBW
washers (tunnels) are available with convenient inlets for such systems (see Figure 1). Most
common of the types of systems currently used in commercial laundering operations are pumped
chemical systems. Other types, such as constant pressure, re-circulating ring main systems have
also been, and may continue to be used with Milnor equipment.
This document warns about some of the possible hazards posed by chemical systems and lists
certain requirements needed to minimize those hazards. The procedures for interfacing with allied
chemical systems and information pertinent to chemical use in general are provided elsewhere in
the product manuals (see Note 1).
Figure 1: Pumped Chemical Inlets on CBW Batch Washer
®
batch
Note 1:
permitting acid sours to react with hypo chlorite) due to incorrect formulation can also be hazardous.
Information pertinent to chemical u se is provided elsewhere in the product manuals.
1.
How a Chemical System Can Damage the Machine It Serves
Misuse of laundering chemicals (such as injecting excessive concentrations of chlorine bleach or
Milnor has manufactured washer-extractors and tunnel washers with the same stainless steel
specification since its founding. Every batch of steel used is certified and documented by the steel
mill. Testing of samples damaged by corrosion have, in every case, proven the steel to be well
within the AISI 304 specification.
PELLERIN MILNOR CORPORATION
Avoiding Damage From Allied Remote Chemical Delivery Systems
16
Chemical products commonly found in the laundry industry, when used in established dosages
and proper operating parameters, under the auspices of an experienced chemical specialist, should
produce satisfactory results, with no consequential detrimental effects. The industry has published
standards in Riggs and Sherrill, “Textile Laundering Technology”. However, the stainless steel
can be damaged and even destroyed by abnormal contact with chlorine bleach, hydrofluosilicic
acid and other commonly used chemicals, as will occur if chemicals are unintentionally leaked
into the machine, particularly when it is no longer in use and especially when machine surfaces
are dry.
Some chemical systems have been found to permit chemicals to dribble from the supply lines, or
worse, to siphon from the supply tank into the machine, during operation and long after the
system is shut down—as after working hours and during weekends. If this occurs, deterioration
(rusting) of the stainless steel and damage to any textiles therein will inevitably result. If this
condition goes undetected, machine damage is likely to be catastrophic. No machine is
immune to such damage.
CAUTION 1 : Equipment and Textile Damage Hazards
—Chemicals leaked into the
machine, particularly when it is idle can destroy machine components and textiles left in the
machine. Pellerin Milnor Corporation accepts absolutely no responsibility for damage to its
equipment or to textiles therein from abnormal contact with chemicals.
• Ensure that the chemical system prevents unintenti ona l rele ase of chemicals.
• Inspect regularly for proper operation and evidence of damage.
2.
Requirements for Chemical Systems Used With Milnor Machines
It is the responsibility of the chemical system manufacturer and supplier to ensure that their
system is safe for personnel and equipment. Some important points are described below.
2.1.
Ensure the System Cannot Siphon.
—The supply system must be designed to
counteract any siphoning that could occur as a result of having a sealed supply line between the
bottom of the chemical tank and the internal machine connection at the drain trough. As shown in
the Figure 2 examples, if the pump (P) and/or the valving does not provide positive closure and
there is no vacuum breaker protection, siphoning is likely to occur. In each of the Figure 2
illustrations, the volume of chem ical in the tank above th e siphon level (S), and indi ca ted by
shading, will flow into the machine.
PELLERIN MILNOR CORPORATION
Figure 2:
17
Siphoning From the Chemical Tank into the Machine
Examples
Legend
Pump
P.
Siphon level. Shading indicates the chemical delivery line and tank content that can siphon into
S.
the machine.
Chemical tank
T.
2.2.
Ensure the Chemical Lines Cannot Dribble
—The pumped chemical system may
provide a means of positively closing the chemical line at the pump location, but not at the
injection site. Hence, any concentrated chemical that remains in the injection line between the
pump and the machine is free to flow into the machine. Some examples of this are shown in
Figure 3.
PELLERIN MILNOR CORPORATION
Avoiding Damage From Allied Remote Chemical Delivery Systems
18
Figure 3:
Dribbling From Chemical Supply Line Into Machine
(assumes positive closure at the pump)
Examples
Legend
Portion of supply line, the contents of which can dribble into the machine
D.
Pump
P.
Chemical tank
T.
3.
Design and Installation Recommendations
It is the responsibility of the chemical system manufacturer and supplier to use whatever
measures are necessary to ensure that their system is safe for personnel and equipment. The
following are some of the possible methods the manufacturer or supplier may wish to use, as
appropriate.
3.1.
Siphoning: Positively close the line.
—If the pump does not provide positive closure
when the system is off, employ a shutoff valve in the line to serve this purpose.
3.2.
Siphoning: Break the siphon.
—Provide an air gap or vacuum breaker in the chemical
delivery line. This must be located above the “full” line of the tank.
3.3.
Dribbling: Flush the entire chemical delivery line.
—If any concentrated chemical
that remains in the injection line between the pump and the machine is free to flow into the
machine, employ a system that flushes the entire line between the pump and the injection point
with fresh water after each injection.
PELLERIN MILNOR CORPORATION
3.4.
19 20
Dribbling: Locate the entire chemical line below the machine inlet.
—
Assuming the chemical system does not retain any line pressure and that the pump provides
positive closure when the system is off, locate the entire chemical delivery line below the level of
the chemical inlet. An example of this is shown in Figure 4.
Figure 4:
Locating a Pumped Chemical System With Positive
Closure To Protect Against Machine Damage
Example of Correct PlacementLegend
Chemical inlet on
I.
machine
Chemical delivery line
L.
Pump with positive
P.
closure when system is
off
Chemical tank
T.
4.
Guarding Against Leaks
All personnel who may work with the chemical system (e.g., chemical system manufacturer,
chemical system supplier, chemical supplier, operator, maintenance personnel) should be vigilant
in observing for leaks in the system. When connecting, or reconnecting chemical lines, whether at
installation, after taking samples, or when replacing components, at a minimum ensure that:
1. the proper components are used,
2. all connections are the proper fit, and
3. all components are securely connected.
CAUTION 2 : Injury and Damage Hazards
—Chemicals leaking from a chemical system
may be corrosive or toxic. Such chemicals can injure personnel and damage equipment.
As required by the warranty, to ensure safe operation, and to achieve optimum performance and
service life from Milnor® washer-extractors, the schedules, instructions, and precautions herein
must be strictly followed.
WARNING 1 : Entangle and Crush Hazard—Belts and pulleys can entangle and crush
body parts.
• Lock OFF and tag out power at the wall disconnect before servicing, except where
specifically instructed otherwise in this section.
• Insure belt and pulley guards are in place during service procedures.
• Permit only qualified maintenance personnel to perform these procedures.
2. 36021C4E Main Bearing Maintenance
36021C4E main bearing housings are oil-filled and require periodic draining and refilling (see
below).
See the appropriate “MAIN BEARING ASSEMBLY” (see Table of Contents) during this
procedure.
1. Remove the drain plug on the bottom of the main bearing housing and allow the bearing
housing to drain completely (Figure 1). Inspect the leak-off, drained oil, and magnetic drain
plug for water and/or metal particles. Install the drain plug. Water and/or metal particles can
indicate worn or damaged seals and bearings.
2. Locate the two 1/2" plastic tubes secured to the electrical control chassis (Figure 2). Clean the
surrounding area and remove the cork stoppers from each.
3. Strictly following lubrication specifications, refill the bearing housing. After refilling the
bearing housing, re-install the cork stoppers and clean any excess lubricant from the machine.
PELLERIN MILNOR CORPORATION
Preventive Maintenance
23
3. Preventive Maintenance Schedule
Table 1: Preventive Maintenance Checklist
ComponentActionFrequencySpecifications/Figure
Bearing
Housing
OilRemove fill, vent and drain
stoppers. Refill 22 ounces (634
grams)
Every four
months
High quality SAE 30 to 50
(ISO 100 - 220) single weight
heavy duty motor oil (nondetergent if available). See
"Oil Drain and Water Leakoff" and also see
"30022C4x,..Fill/Vent Hoses"
Drive Train
Drive
Inverter
Hoses,
Clamps, and
Connections
Belts and pulleysCheck for wear, replace as
required
Motors (if
equipped with
grease fittings)
See "Baldor Motor
Maintenance...," in this manual
(See Note 3)
(See Note 2)
InverterVerify fan operation. Vacuum
out inverter vents.
Inlet, drain, and
chemical hoses
Check for leaks, cracks and
bulges
and connections
MonthlySee "Drive Train Pulleys and
Belts"
Every three
Months
See motor nameplate. If not
specified, use Shell Alvania
(or equivalent). See "Motor
Grease Points"
MonthlySee "Inverter Maintenance
Points"
Monthly
BoltsFoundationCheck bolt tightness and wearMonthlySee dimensional drawings
Rear bearing
reinforcement
plate and
throughout
machine
See "30022C4x,...Rear
Reinforcement Plate" for
36021C4E and 36026V5J
machines, or "42026V6J Rear
Reinforcement Plate" for
42026V6J machines.
Note 1: Monthly/200 hours = Once a month or once every 200 operating hours, whichever comes first.
Note 2: Do not over-lubricate motors. Over-lubrication of a motor can seriously damage it by forcing
grease into motor windings.
Note 3: If motor manufacturer's instructions conflict with manual section MSSM0274AE, follow
manufacturers instructions. Motors are warranted by the manufacturers, not by Milnor.
PELLERIN MILNOR CORPORATION
4. Maintenance Points
24
Preventive Maintenance
Figure 1: 30022C4x, 30022T5x, 36021C4E and
36026V5J Oil Drain and Water Leak-off
Figure 3: Drive Train Pulleys and
Belts (30022V6J shown)
Figure 2: 30022C4x, 30022T5x,
36021C4E and 36026V5J Oil
Fill/Vent Hoses (use either hose
for filling)
PELLERIN MILNOR CORPORATION
Preventive Maintenance
25
Figure 5: Inverter Maintenance Points
36021C4E InverterLegend
1.Fan
2.Vent
.
— End of BIRQUM01 —
PELLERIN MILNOR CORPORATION
MSSM0101CE/9 90 6A V (1of 19)
26
ÈFASTENER TORQUE REQUIREMENTS
The specifications in this section apply to 1/4 inch and larger Unified National fine and coarse fasteners used on
Milnor® machines. This information is to be used only when torque specifications are not stated in the installation
or service instructions.
When tightening applicable fastener, abide by the follow-
ing precautions:
1. Always use new fasteners. Replace bolts, nuts, flat wash-
ers, and lock washers in the order shown on the parts
drawing.
2. Unless otherwise specified, use:
•Loctite® 271 threadlocker or equivalent for bearing
housing mounting bolts from one half to one inch in di-
ameter.
•Loctite® 277 threadlocker or equivalent for bearing
housing mounting bolts of one inch diameter or larger.
•Loctite® 242 threadlocker for all other fasteners
requiring thread locking compound.
3. Use a torque wrench to assure proper tightness.
4. Never lubricate fasteners. The values specified herein are
maximum recommended torques and are calculated from
published ASTM and SAE data. Actual allowable torques
are application dependent and can vary for many reasons,
(joint types, gaskets, etc.). Use these values as a guide.
5. Although FIGURE 1 depicts hex head bolts, the table applies to all head types.
ÎFIGURE 1
ÎFastener Grade Mar ki ngs
(MSSM0101CE)
ÊFasteners and Threadlocker
ËHow Fasteners Loosen
bly. With the fastener at the proper torque, 85% of the tightening torque is absorbed in the threads and under the
fastener head. The remaining 15% provides t he fricti on t hat prevents the t hread from sl ippi ng. When thi s frict ion is
overcome (by bending, thermal expansion, internal pressures, functional loads, or impact) the thread slips and loosens. Although higher torques reduce the likelihood of thread slippage, if slippage occurs, the threads unwind and
the fastener loosens. Once thread slippage begins, vibration increases the rate of loosening.
ËPreventing Loosening
cation of a threadlocking compound. Threadlocker provides lubrication during assembly, then hardens to seal the
threads against corrosion and provide resistance to thread slippage.
—Standard threaded fasteners are manufactured with a clearance fit for easy assem-
—The most effective way to prevent loosening of threaded parts is by proper appli-
Loading...
+ 69 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.