Forney LA-270 Series User manual

INSTRUCTION MANUAL
LA-270 SERIES
FLEXURAL TESTING MACHINE
MN-LA-270

Contents
Page Number
Warranty
Installation Procedure 4
Accessories Installation 5
Sequence Of Operation 6
Functions Of The Control Valve 7
Control Valve Operation Sketch 8
Control Valve Schematics 9-10
Control Valve Repair Parts List 11
SPX Power Team Pump 12
SPX Power Team Pump Operation 13
Preventive Maintenance 14
Preventive Maintenance 15
Forney Authorized Service Representatives 16-20

Warranty, Service and Return Policy
LA-270 Series Testing Machines
Statement of Warranty
Subject to the terms and conditions as stated herein, Forney Inc. warrants all LA-270 Series
testing machines to be free from defects in material, and factory workmanship, for a period of
twenty-four (24) months from the date of shipment from Hermitage, Pennsylvania.
Terms and Conditions of Warranty
A. If within 24 months from the date of shipment from the Forney factory, the LA-270 Series
tester malfunctions, is noted defective or not complying with the stated A.S.T.M.
specification, you must contact the Forney service department for disposition under
warranty. Forney Inc. will repair, replace, or credit, (at Forney option and expense), all items
found defective while under warranty. Items not manufactured by Forney, will carry the
vendor warranty extended by the vendor to Forney Inc. Some items in this category include:
digital equipment pressure transducers, hydraulic pumps & valves, and computer printers.
B. Items not covered under warranty are those considered to be maintainable such as: O-rings
and back-up rings, fittings, hoses, filters, etc.
C. The warranty does not cover expenses, either direct or indirect, that may arise from the use
or inability to use these products. Liability for financial losses, injury or damage caused to
persons or property, are the sole responsibility of the purchaser. The warranty does not
cover the second owner in the event of resale. The warranty does not cover on-site
calibration or transportation costs due to replacement or repair of warranted items.
D. The warranty is void if defects result from misuse, negligent handling, improper installation,
or accidental damage caused by fire, water, or an act of God.
E. Forney Inc. reserves the right to make improvements in materials and design on products
without notice and without obligation to incorporate the same improvements on previously
manufactured products.
F. To qualify for warranty, all repairs or modifications must be authorized by Forney Inc. All
serial numbers must be intact and unaltered.
Freight Carrier Damage
Claims for equipment damaged in transit must be returned to the freight carrier by the receiver.
Visible damage must be reported immediately or shipment rejected. Concealed damage must
be reported within fifteen (15) days from receipt of shipment, in accordance with the freight
carrier’s regulations.
Serial Number:____________________ Date:_______________________

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Installation Procedure
1. Before uncrating, inspect to see that no visual damage has occurred during
shipment. If damage has occurred, notify the delivering carrier immediately.
2. Locate the packing list and carefully uncrate and remove. Check parts and units
against the packing list to make sure the shipment is complete.
3. It is recommended that the machine be located in an area where the atmosphere is
free from acidic or contaminating fumes, which could possibly accelerate corrosion
to, machined surfaces or electrical contacts.
4. Machines equipped with electronic load monitors should be located in a heated lab
type environment where humidity or condensation is not a problem.
5. A dedicated electric outlet is also recommended to help insure that proper electric is
provided to the unit.
6. An inline surge suppressor (TA-1235-55) should be installed to protect against
power surges and lightning strikes.
7. The machine should be positioned allowing sufficient space at the side and rear for
calibration or servicing working space.
8. The machine should be accurately leveled.
9. Clean off the machine surfaces that have been coated with rust preventative using
any suitable non-corrosive safety solvent. Wipe machined surfaces with a clean,
oiled cloth to minimize rusting.
10.If the oil reservoir has been drained for shipment, fill with Dexron III automatic
transmission fluid.

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ACCESSORIES (METHOD OF INSTALLATION)
All stock item accessories for the LA-270 Series Testing Machines are held in place by
means of a holding stem (TA-0176) and a set-screw (TM-2090).
Accessory Installation
Place the accessory with the holding stem attached, up into the center hole of the
receiver and tighten the set-screw.
Safety Features
On the electric pump, an adjustable relief valve protects the testing machine from
becoming overloaded.
Calibration After Installation
Forney Testing Machines are factory-calibrated in accordance with applicable
specifications. During the calibration procedure, all accuracy adjustments are made.
Even though the testing machine is completely factory calibrated and serviced, Forney
recommends recalibration of the testing machine after delivery and set up to insure the
highest degree of accuracy possible. This is also required by ASTM E-4 specifications.
Recalibration
Forney offers a complete on-site calibration service that is handled through our
Authorized Regional Representatives (See pages 16-22)
Replacement Parts
When ordering, refer to applicable model and serial number of your testing machine.
This information can be found on the data tag attached to your machine.

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Sequence of Operation
Testers Equipped with Control Valve, HA-0619
1. Motor switched off, carefully center specimen in testing machine.
2. Turn Control Knob No. 2 clockwise to a snug position.
3. Position Valve Control Handle No. 1 to the “Metered Advance” position.
4. Turn on the electric pump.
5. If a fast preload is desired, position Valve Control Handle No. 1 to “Full Advance”.
6. Watch the load monitor closely and when the desired preload has been attained,
move Valve Control Handle No. 1 to the “metered” position.
7. To increase the rate of loading, turn Control Knob No 2 counterclockwise.
8. To decrease the rate of loading, turn Control Knob No. 2 clockwise.
9. To hold pressure at any desired point, position Valve Control Handle No. 1 to the
“Hold” position.
10.To release pressure so that the platen will return after a test has been completed,
position Valve Control Handle No. 1 to the “Retract” position.

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FUNCTIONS OF THE HA-0619 CONTROL VALVE
(REFER TO FIG. 1)
Metered Advanced Position
This position of the Control Handle No. 1 allows the operator to adjust the rate of
loading. Using Control Knob No. 2 as the adjustment, turn the control knob clockwise for
a decrease and counterclockwise for an increase in the rate of load.
Full Advance Position of Control Handle No. 1
This places the machine in a rapid advance, non-controlled rate. This is used chiefly for
setting a pre-load or positioning the crosshead.
Hold Position of Control Handle No. 1
This position holds the pressure constant on the specimen.
Control Knob No. 2
With valve Control Handle No. 1 in the metered advance position, this knob allows the
operator to accurately control the loading rate. Turn the control knob clockwise for a
decrease, and counterclockwise for an increase in the rate of load.
Retract Position of Control Handle No. 1
This position channels oil from the pump to the reservoir releasing pressure from the
specimen, and allowing the piston to retract.
Note: During operation, the flow control valve will go through a significant temperature
rise. Do not be alarmed, as this rise will not affect the operation of the testing machine.

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Control Valve Parts List
ITEM PART NO. DESCRIPTION
No. No. Req`d,
1 250885 1 Knob
2 21639 1 Stud
5 11455 1 Snap Plug
6 11010 1 Machine Nut (#10-32 UNF)
7 44708 1 Valve Knob
9 302938 1 Flow Control Valve
10 10008 4 Socket Cap Screw (1/4-20 x ¾”LG.)
11 11916 1 Roll Pin
12 11229 1 O-ring (2 3/8” x 2 3/16” x 3/32”)
13 11227-1 1 Bearing Race
14 11228 1 Thrust Bearing
15 10496 1 Roll Pin (5/16” x 1” Lg.)
16 11127 1 Plug (3/8” NPTF)
17 302939 1 Adaptor
18 10300 2 O-Ring (.468 ID x .078 cs)
19 10425 1 Compression Spring (3/8” x ¾”)
20 20771 1 Poppet
21 64528 1 Valve Body
22 21298 1 Drain Line
23 204748 1 Spring Retainer Fitting
24 15134 1 Pipe Plug (1/16” NPTF)
25 207404 1 Compression Spring (5/16” x 2 7/16” Lg.)
26 302953 1 Spool & Body Assembly
27 10022 4 Socket Head Cap Screw
28 11953 1 Plug
29 10269 3 O-Ring (3/8” x 9/16” x 3/32”)
32 10855 4 Socket Head Cap Screw (1/4-20 x 2 ¾”)
33 44686 1 Rotor
34 10146 4 Compression Spring (19/64” O.D. x 7/16” Lg.)
35 10266 4 O-Ring ¼” x 3/8” x 1/16”)
36 12184 4 Backup Washer (Teflon)
37 207381 4 Shear Seal
38 10375 1 Steel Ball
39 16320 1 Compression Spring (1/4” O.D. X ¾” Lg.)
40 201814 1 Valve Body Cap
41 10268 1 O-Ring (3/8” x ½” x 1/16”)
42 207380 1 Valve Stem
44 10267 1 O-Ring (7/16” x 5/16” x 1/16”)
45 10527 1 O-Ring (13/16” x .644 x .087)
46 15500 1 Backup Washer (9/16” x 7/16” x .048)
47 12098 1 O-Ring (9/16” x 7/16” x 1/16”)
48 10241 1 Lockwasher

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SPX POWER TEAM VALVE # HA-0619
REPAIR PARTS
PART # DESCRIPTION SPX POWER TEAM #
HA-0619-47 Valve Knob #44708
HA-0619-48 Compression Spring ( 19/64 O.D.X 7/16 Lg. ) #10446
HA-0619-49 Flow Control Valve #302938
HA-0619-51 Spool & Body Assembly #302953
HA-0619-53 Spring Washer #12187
HA-0619-54 O-Ring (1/4x3/8x1/16) #10266
HA-0619-55 Teflon Backup Washer #12184
HA-0619-56 Shear Seal #207381
HA-0619-57 Rotor #44686
HA-0619-58 Roll Pin (5/16x1Lg.) #10496
HA-0619-59 O-Ring (2 3/8 x 2 3/16 x 3/32) #11229
The above list includes the most common repair parts requested, and the part numbers
can be used to order from a Forney sales associate.
SPX POWER TEAM VALVE REPAIR KIT # HA-0619-62
The SPX Power Team Valve Repair Kit includes the following parts:
QTY.
HA-0619-48 Compression Spring 4
HA-0619-53 Spring Washer 4
HA-0619-54 O-Ring 3/8x1/4x1/16 4
HA-0619-55 Teflon Backup Washer 4
HA-0619-56 Shear Seal 4
HA-0619-57 Rotor 1
HA-0619-58 Roll Pin 5/16x1 1
HA-0619-59 O-Ring 2 3/8 x 2 3/16 x 3/32 1
We recommend that you contact a FORNEY authorized service technician to service
and install repair parts on your machine.

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LA-270 SERIES
EQUIPPED WITH SPX POWER TEAM PUMP
The oil reservoir has been filled prior to shipment with Dexron III Automatic
Transmission Fluid.
NEVER OPERATE THE ELECTRIC PUMP WITHOUT OIL!!!
Keep the oil level to approximately 1” to 1 ½” from the top of the reservoir with the
hydraulic piston in the testing machine retracted all the way.
NOTE: The reservoir capacity of the ¾ hp. pump is 2 gallons, and the reservoir
capacity for the ½ hp. pump is 7 quarts.
The electric pump operates on 115/220 volts, 50/60 cycles, single phase current unless
otherwise ordered. If the voltage of the pump is changed, be absolutely sure the
rotation is in the correct direction according to the arrow on the motor.
The electric pump is practically noiseless when idling; however, as pressure builds up,
the pumping noise gradually increases, but this is not cause for alarm. If the pump
becomes excessively noisy, check the filter element for possible dirt particles.

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Operating Instructions
SPX Power Team Pump
This two-stage hydraulic pump incorporates precision design and engineering features,
which make it the most outstanding pump of its kind on the market. All moving parts are
made from high-grade tool steel, heat-treated, machined, ground and lapped to
extremely close tolerances to assure efficient operation and long life. Peak efficiency
for either continuous or intermittent operation is assured at the full range of pressures
up to 10,000 P.S.I. You will have uninterrupted, trouble free service if you keep it clean
and use only high grade, Dexron III Automatic Transmission Fluid.
NOTE: The reservoir capacity of the ¾ hp. pump is 2 gallons, and the reservoir
capacity for the ½ hp pump is 7quarts.
How to Operate the Pump
1. Check the oil level in the reservoir to be sure it is at the correct level.
2. Make sure all valve and hose connections are tight.
3. Plug in the power cord.
4. Set the control valve in the hold or retract position,
5. Turn on the power switch to your pump and let the pump idle for a few minutes.
6. Use the control valve to advance the piston out to its full travel limit of 2” several
times to eliminate air from the system.
The pump is now ready to be put into regular operation using the control valve to
perform testing operations.

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Preventive maintenance
LA-270 Series Machines
Keeping this unit clean and the oil free of dirt will increase the life of the pump &
valve
The reservoir should be drained, cleaned, and replenished with clean oil at least once a
year or more often if possible. The frequency of the oil change will depend on the
general working conditions, hours of use, and the overall cleanliness and care given to
the pump & valve.
The following operations should be performed with the power off and the piston
should be retracted.
Draining & Cleaning the system
Using a 3/16” Allen wrench, loosen the Allen head screws and remove the loading valve
from the cover plate, to perform the following steps.
1. Thoroughly clean the pump exterior before the pump interior is removed from the
reservoir.
2. Remove the Phillips head screws that fasten the motor and pump assembly to
the reservoir.
3. Lift the pump and motor off the reservoir carefully to avoid damaging the gasket
or any internal components.
4. Clean the inside of the reservoir and fill it half full of clean ATF DEXRON III.
5. Place the pump and motor assembly back into the reservoir and secure with 2
machine screws assembled on the opposite corners of the housing.
6. Connect a hose to the pressure port that the valve was sitting on; place the other
end of the hose in the hole next to the port.
7. Run the pump for several minutes and then disconnect the motor & pump
assembly.
8. Drain & clean the inside of the reservoir.
9. Clean or replace the screen on the pump.
10. Fill the reservoir with clean Dexron III Automatic Transmission Fluid to the proper
level.
NOTE: The reservoir capacity of the ¾ hp. pump is 2 gallons, and the reservoir
capacity for the ½ hp pump is 7quarts.
11. Place the pump & motor assembly with the gasket on the reservoir and tighten all
the screws.

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Preventive Maintenance
LA-270 Series Machines
Checking & maintaining the oil level
1. Check the oil level in the reservoir by removing the plastic cap on the top of the
cover plate, the oil level should come to within 1” to 1 ½” of the cover plate with
the piston retracted. If the level is okay, replace the cap.
2. When it is necessary to add oil to the reservoir, remove the cap and fill the
reservoir to the proper level with DEXRON III AUTOMATIC TRANSMISSION
FLUID. (Do Not Overfill)
NOTE: The reservoir capacity of the ¾ hp. pump is 2 gallons, and the reservoir
capacity for the ½ hp pump is 7quarts.
How to Fill the Reservoir with Hydraulic Oil
1. Viewing the top of the reservoir, you will notice a plastic screw-in-plug. This is the fill
hole for hydraulic oil. Clean the area around the plug to remove all dust and grit
before removing the screw-in-plug. Any foreign particles in the oil could damage
pump surfaces resulting in loss of performance.
2. Insert a clean funnel with filter.
3. Fill with oil to within 1” to 1½” from the top of the filler hole.
4. Replace the plug.
Bleeding air from the system
Upon initial start up, air can accumulate within the hydraulic system. The trapped air can
cause the system to advance slowly or surge and make the motor become noisy. To
remove the trapped air, try the following steps.
1. With oil in the unit and the machine ready to operate under zero load, advance
the piston or platen out toward the 2” travel limit of the machine and then retract
to the starting position. This should be done several times to work the air out of
the system. If this does not remove all of the trapped air, you can perform step
#2.
2. With oil in the unit and the machine ready to operate under zero load, loosen a
couple of turns, but do not remove, a hose fitting that is situated higher than the
rest of the hose fittings in the system. Run the pump until a steady flow of oil, free
of air bubbles is observed. Re-Tighten the fitting.

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Forney Authorized Service
Representatives
Revised August, 2006
No. Company Name Account Territory
1 A&A Enterprises 11455 California (Fresno & South)
12421 Charloma Dr. Guam
Tustin, CA 92780-2400 Saipan
Phone: [phone] Kwajalein
Fax: [phone]
Cell: [phone]
Attn: W.P. "Bunk" Haines
Email: [email protected]
2 Accu-Cal, Inc. 738 Alabama
466 Lakeview Dr. P.O. Box 515 Florida
Dahlonega, GA 30533 Georgia
Toll: [phone] North Carolina
Phone: [phone] South Carolina
Fax: [phone] Tennessee
Cell: [phone]
Pager: [phone]
Attn: Ben James
Email: [email protected]
3 American Calibration & Testing 32926 Connecticut
34 Forest Park Ave. Long Island
N. Billerica, MA 01862-1333 Maine
Phone: [phone] Massachusetts
Fax: [phone] New Hampshire
Attn: Gordon Mooney, Terri Gour, Pam New York City
Dimente Rhode Island
Email: [e-mail] Vermont
4 Arizona Calibration 18318 Arizona
761 S. Roca Colorado (South)
Mesa, AZ 85204 Nevada (South)
Phone: [phone] New Mexico
Fax: [phone] Utah (South
Cell: [phone]
Pager: [phone]
Attn: Mike Gourde
5 Cal Test, Inc. 23036 Colorado
160 Vallejo St. Kansas (West)
Denver, CO 80223 Nebraska (West)
Phone: [phone] Utah
Fax: [phone] Wyoming
Attn: Don Rosch
6 Cal-Cert Co. 55846 Alaska
6709 SE Lake Rd. California (Sacramento North)

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Milwaukie, OR 97222 Colorado
Phone: [phone] Idaho
Fax: [phone] Montana
Cell: [phone] Oregon
Toll: [phone] Utah
Attn: Marshall Doyle Washington
Ship to: 7010 SE Norbert Dr. Wyoming
Milwaukie, OR 97222
Email: [email protected]
7 Cal-Chek Canada 18888 All of Canada
250 Governor's Rd. Except Quebec
Dundas Ontario
Canada L9H 3K3
Phone: [phone]
Fax: [phone]
Attn: John or Judy Newitt
Email: [e-mail]
8 Calibrations Inc. 21717 Arkansas
PO Box 2966 Louisiana
Conroe, TX 77305 Oklahoma
Phone: [phone] Texas
Fax: [phone]
Cell: [phone]
Attn: Frank Rotecki
Ship to: 202 Sunset Blvd.
Conroe, TX 77301
9 Calibrations Services, Inc. 446 Delaware
PO Box 735 Kentucky (East of Louisville)
Emlenton, PA 16373 Maryland
Phone: [phone] Michigan
Toll: [phone] Ohio
[phone] New York (West)
Fax: [phone] PA to Philadelphia
Toll Fax: [phone] Virginia
Attn: Bill Stump III West Virginia
Tim's cell: [phone]
Ship to: 300 Buttertown Rd. Puerto Rico
Emlenton, PA 16373 Caribbean
Email: [email protected]
Bahamas, Bermuda, US Virgin
Islands
[email protected]
10 Calser Corporation 43957 Illinois
PO Box 24121 Indiana
Belleville, IL 62223 Iowa
Phone: [phone] Kansas
Fax: [phone] Kentucky, Louisville West
Attn: Tom Gagen or Jerry Parker Missouri
Ship to: 302 N. Belt East Nebraska
Swansea, IL 62226 Northern Arkansas

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Email: [email protected] Oklahoma
Tennessee, Nashville West
Wisconsin
11 Coast Calibration Co., Inc. 15003 California
655 Linden Ave. Nevada in emergencies
Carpinteria, CA 93013
Phone: [phone]
Fax: [phone]
Cell: [phone]
Attn: Ted R. Buergey
Email: [email protected]
12 Mobile Calibration Service 14776 Alabama
PO Box 640192 Arkansas
Kenner, LA 70064 Florida
Phone: [phone] Georgia
Fax: [phone] Kansas
Attn: Warren Meyn, Jr. Louisiana
Ship to: 411 Incarnate Word Dr. Mississippi
Kenner, LA 70065 Oklahoma
S. Carolina
Tennessee
13 National Calibration, Inc. 734 Arizona
3737 E. Broadway Rd.
Phoenix, AZ 85040
Phone: [phone]
Fax: [phone]
Attn: Buck Halloran, Donald Weeks
14 National Calibration, Inc. 34948 New Mexico
8305 Washington Place, N.E. Western Texas
Albuquerque, NM 87113 Colorado
Cell: [phone] Oklahoma Panhandle
Fax: [phone]
Attn: Jeff Pettit
15 National Calibration, Inc. 962050 Las Vegas Nevada
3611 W. Tompinks Ave.
Las Vegas, NV 89103
Cell: [phone]
Fax: [phone]
Attn: Donald Weeks
16 National Calibration, Inc. Salt Lake City Utah
760 South Redwood Dr. Wyoming
Salt Lake City, Utah 84104 Colorado
Phone: [phone]
Fax: [phone]
Attn: Rod Wickham
Email: [email protected]

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17 National Calibration, Inc. Texas
11900 Crown Point Drive # 140
San Antonio, TX 78233-5356
Phone: [phone]
Fax: [phone]
Attn: Mike Tedesco
18 Pacific Calibration Service 35836 California (North and Central)
295 Old County Rd. Suite # 2 Nevada
San Carlos, CA 94070
Phone: [phone]
Fax: [phone]
Web: www.pacificcalibration.com
Attn: Brian Richardson or Dave
Mazza
or Andrew Lyon
19 Pyrometric Service Company 19860 Alaska
1312 S. 96th St. Idaho
Seattle, WA 98108 Oregon
Phone: [phone] Washington
Fax: [phone]
Attn: Mike Johnson
20 Qal-Tek Associates Idaho
3998 Commerce Circle
Idaho Falls, ID 83401
Phone: [phone]
Fax: [phone]
Attn: Don Prescott
Email: [email protected]
21 Richardson Associates 21589 Texas
2513 Weaver St., Suite A Oklahoma
Forth Worth, TX 76117 Arkansas
Phone: [phone] New Mexico
Fax: [phone] Kansas
Cell: [phone]
Attn: Bill Richardson or Helen Louisiana
22
SBCR (SB Calibration & Repair,
LLC) 537 Colorado
9915 Hwy 18 North E. Idaho
Cavalier ND 58220 Illinois
Phone: [phone] Iowa
Cell: [phone] Kansas
Attn: Norm and Sandy Becker Minnesota
Email: [email protected] Mississippi
Montana
N. Dakota
Nebraska
S. Dakota
Utah
Wisconsin

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Wyoming
23 Test Technology, Inc. 59533 Colorado
P.O. Box 1293 Illinois
Clackamas, OR 97015 Indiana
Phone: [phone] Iowa
Fax: [phone] Kansas
Toll: [phone] Kentucky
Michigan
P.O Box 119 Minnesota
Rogers, MN 55374-0119 Missouri
Phone: [phone] Montana
Fax: [phone] Nebraska
Toll: (800) 9TESTEC N + S Carolina
N + S Dakota
Ohio
Tennessee
Wisconsin
Wyoming