Page 61 - Shale Shakers Drilling Fluid Systems

44 SHALE SHAKERS AND DRILLING FLUID SYSTEMS

LINK-BELT COMPANY

SCREEN CLOTH FOR LINK-BELT SHALE SHAKERS

Link-Belt Shale Shaker Size
NRM-124-S NRM-124-D NRM-134-D NRM-145-S
Nominal Wire 241/2 "x 47i/ 2" 36i/ 2 "x 47l/ 2" 481/2 "x 591/2"
Opening, Diameter,
Mesh Inches Inches Symbol Price Symbol Price Symbol Price
12 .060 .023 AA AAA
16 .040 .023 AB AAB 4
18 .038 .018 AC AAC R
18 .0326 .023 AT AAT AS
16 x 18 .0326 .023 AX See AAX See AW See
20 .033 .017 AD Current AAD Current M Current
20 .033 .017 Price Price N RM* Price
24 .027 .015 AE List AAE List S List
20x30 .018 .015 AF AAF L
24x30 .020 .0135 AG AAG DD
24x30 .020 .0135 A RM*
30 .020 .013 EE
40x36 .015 .0105 AH AAH O
50 .011 .010 AI AAI BB
60x40 .008 .009 AJ AAJ CC
•Cloths measure 45" between bends instead of 48%'
OPERATING INSTRUCTIONS
SPEED show a tendency to blind, a wire brush may be used to clear
the openings. Similarly, if oil or pipe compounds clog the
Screen should operate at a steady speed of 1800 to
2000 R.P.M. openings, they may be cleared by washing with a rag soaked
with kerosene.
The direction of rotation should always be down-hill, that
is, the top belt of the drive should always travel towards the REPAIRING SCREEN
discharge end of screen.
Before making repairs read carefully all explanations given
under the various parts you are particularly concerned with.
NEOPRENE STRIPS
Refer to REPAIR PARTS LIST corresponding drawings
The screen cloth is supported and cushioned on specially shown in this folder.
designed sponge Neoprene strips (Part No. 364W4) which
are easily inserted in channel. When ordering repair parts we suggest that you use the
part number as shown in parts list. In every case refer to
Neoprene strips and channels are proportioned so that our serial number which is stamped upon the name plate
strips will remain in position without bolting or cementing. fastened on the side of each screen. The serial number is
important.
TENSION BOITS
LUBRICATION
Tension is applied to the screen cloth by uniformly tight-
ening tension nuts (Part No. 126W120^) on specially de- (a) Each bearing is lubricated separately and is furnished
signed tension bolts (Part No. 126W105A). These bolts are with fittings for grease lubrication.
fastened rigidly to the screen box as shown on drawings, (b) Bearings are lubricated before leaving factory. The
permitting easy installation of replacement bolts when neces-
sary and also facilitating the removal of tension plates (Parts usual practice is to lubricate each bearing with one shot from
grease gun every 24 hours.
No. 438X4-1 or 438X5-1) when renewing the screen cloth.
A rise in temperature of as much as 40 degrees F. may be
CARE OF SCREEN CLOTH considered normal.
Before placing the cloth on the screen be sure all the (c) It is not good practice to use kerosene or gasoline for
Neoprene strips are in place. The screen cloth furnished is flushing purposes. If care is used to keep lubricant clean and
made of stainless steel to resist corrosion and is bound along free from grit, there should be no need to flush the bearings.
both longitudinal edges with special steel binders which en- When it is found necessary to clean the bearings, remove
gage the tension plates. Lay the screen cloth in place on the the housing covers to expose the rollers and races.
Neoprene strips and then add tension to the screen cloth (d) Use only a good lubricant such as recommended for
uniformly, tightening the tension nuts until the cloth has high grade roller bearings. Under normal conditions any of
the proper tension for satisfactory operation.
the following greases or their equivalents are suggested. If
Sufficient tension should be applied to remove all sag bearings are to be operated in extreme temperatures, refer
from cloth. your problem to our Engineering Department.
Because fine mesh cloth as a rule will have an initial New York & New Jersey Lubricant Co., "No. F-925 Non-
stretch shortly after being put in use, it is particularly im- fluid oil".
portant that the tension of the cloth be checked at this time.
After this, periodic check of the cloth tension is advisable. Socony-Vacuum Oil Company, "Gargoyle BRB No. 2".
The Texas Company, "Starfak No. 2".
The screen is usually furnished with cloth of stainless steel
wire to provide a clear opening of .033". This gives best Gulf Refining Co., "Gulf Anti-Friction No. 1".
results under average conditions although coarser or finer
mesh cloths can be furnished if the individual mud charac- Standard Oil Co. of Indiana, "Superla 2X".
teristics are of such nature to require them. Care should be Sinclair Refining Co., "No. AF-2".
used in handling the screen cloth. Do not lay tools or heavy
material on it and in cleaning always wash down with a Standard Oil Co. of New Jersey.
hose; never scrape mud or sand off the cloth. If the meshes Humble Oil and Refining Co.