WASHER-SAFET 1049955 - Caterpillar

Required Parts
Table 1
Parts List
Qty Part Name Material
2 Tie plate Steel with yield strength 290 MPa (42061 psi)
4 Plate Steel with 10.9 grade
8 Bolt -
8 Lock nut Class 10
16 Washer - Welding Instructions
Welder Qaulification/Safety
Welder must be qualified for the right process SMAW and all welders must be qualified for fillet and groove welding (2G / 2F) as outlined in the current ANSI/AWS D1.1, or D14.3. If the rework is carried out other than flat or horizontal position, the welder needs to be qualified according to the position in which the rework is being carried out.The welding operator must also have used the welding process during the last six months or be re-certified for this purpose before welding.Welding quality is critical to the success of the installation procedure. Welds must be smooth and continuous. Visual aspect, undercuts, overlaps, shape irregularities, excess of penetration is critical for the structure fatigue life. Welds must be smooth and continuous. Grind the ends of the welds to a smooth radius.Electrode/Characteristics
The SMAW process shall be used with E7018 (ANSI/AWS A5.1) welding electrode. The weld deposited by these electrodes should have a minimum yield strength of 345 MPa (50038 psi).These are low hydrogen electrodes and must be stored in an electrode oven at 120 degrees C (250 degrees F) when not in use. If the electrodes get damp, scrap or recondition to manufacturer's specifications.The following chart relates to the electrode diameter and approximate current settings for welding:
Table 2
Diameter Amps
3.2 mm (0.13 inch) 1/8'' 70 - 140
4.0 mm (0.16 inch) 5/32'' 110 - 180
4.8 mm (0.19 inch) 3/16'' 190 - 270 Use the direct current electrode positive (DC reverse polarity) polarity setting and remove the slag after every pass.Precaution/Precleaning
Clean the area to be welded of oil, grease, paint, and dirt. Attach the welding ground cable directly to the plate assembly. Protect all machined surfaces from sparks or spatter produced by the welding, chipping, and/or grinding operations.Quality/Inspection
The weld shall be free from cracks, porosity, undercut, and incomplete fusion. All weld quality shall conform to ANSI/AWS 14.3.Rework Procedure
Illustration 1 g06207185
(A) 40.0 mm (1.58 inch.)
(B) 162.3 mm (6.39 inch)
(C) 12.0 mm (0.47 inch)
(D) 42.5 mm (1.67 inch)
(E) 60.0 mm (2.36 inch)
(F) 145.0 mm (5.71 inch)
(G) 242.3 mm (9.54 inch)
Fabricate two tie plates using (yield strength > 290 MPa (42061 psi)) steel as per dimensions shown in Illustration 1.
Illustration 2 g06207187
(H) 50.0 mm (1.97 inch)
(J) 12.0 mm (0.47 inch)
(K) 42.5 mm (1.67 inch)
(L) 60.0 mm (2.36 inch)
(M) 100.0 mm (3.94 inch)
Fabricate two weld on plate using (yield strength > 290 MPa (42061 psi)) steel as per dimensions shown in Illustration 2.
Disassemble side plates from hammer and scrape the paint from side plates near the weld location.Note: Ensure a clean metallic surface before welding.
Illustration 3 g06207189
(N) 262.3 mm (10.33 inch)
Illustration 4 g06207188
Section P-P
(R) 16.0 mm (0.62992 inch)
(S) 140.0 mm (5.51180 inch)
(T) 90.0 mm (3.54330 inch)
(U) 50.0 mm (1.96850 inch)
(V) 155.0 mm (6.10235 inch)
(X) 78.5 mm (3.09055 inch)
(W1) 8.0 mm (0.32 inch) Fillet weld on both the sides
Weld the fabricated plates in Step 2 with the