HOUSING-AXLE 3720716 - Caterpillar

Illustration 2 g00975229
This view shows the updated elevator drive. The elevator frame has been omitted for clarity. (5) 8I-1756 Bracket As (5A) 227-3139 Manifold (5B) 227-3136 Plate (6) 8I-1757 Hose As (7) 2S-5925 Grease Fitting (8) 5M-6708 Washer (9) 4B-4550 Fitting (10) 8I-2191 Guard (11) 8I-1847 Plate (12A) Nut (lock) (12B) Nut (13) Bolt (14) Pin assembly (15) Double acting cylinderInstall all the new parts. If you will rework bracket assembly (1), refer to the section for "Rework the Existing Bracket Assembly" in this article. If you update both sides of the machine, you will need to double the quantities of the parts from table 1. If you update both sides of the machine you will not need plate (11) .Rework the Existing Bracket Assembly
Remove the Old Manifold
Illustration 3 g00975271
(1) 8I-1756 Bracket As (1A) Manifold (1B) Plate Remove manifold (1A). Grind any old welds flush.Add a Hole to the Plate
Illustration 4 g00975238
(5B) 227-3136 Plate (D1) 35.0 mm (1.39 inch) (L1) 24.0 mm (0.95 inch)Add a new hole to plate (1B). Refer to illustration 4 for the correct dimensions. When the new hole is added, plate (1B) becomes plate (5B) .Fabricate the New manifold
Illustration 5 g00975233
(5A) 227-3139 Manifold (A1) 45° (A2) 30° (D2) 8.60 mm (0.339 inch) (11/32 inch) (D3) 8.70 mm (0.343 inch) (11/32 inch) (D4) 14.50 mm (0.571 inch) (37/64 inch) (D5) 11.20 mm (0.441 inch) (7/16 inch) (L2) 40.0 mm (1.58 inch) (L3) 20.5 mm (0.81 inch) (L4) 117.0 1.0 mm (4.61 0.04 inch) (L5) 14.4 mm (0.57 inch) (L6) 49.2 mm (1.94 inch) (L7) 97.2 mm (3.83 inch) (L8) 104.0 mm (4.09 inch) (L9) 25.0 mm (0.98 inch) (L10) 45.0 mm (1.77 inch) (L11) 34.5 0.5 mm (1.36 0.02 inch) (L12) 28.5 mm (1.12 inch) (L13) 21.0 mm (0.83 inch) (L14) 1.5 0.5 mm (0.06 0.02 inch) (L15) 66.0 0.5 mm (2.60 0.02 inch) (T1) 1/8 - 27 NPTF thread (T2) 5/8 - 18 thread (T3) 1/4 - 18 NPTF threadFabricate manifold (5A). Refer to illustration 5 for the correct dimensions.Start with a piece of 1018 steel. The piece must have width (L2), length (L15) , and height (L4). All holes are centered on the width (L2) of the piece.Drill two holes of diameter (D2). One hole is distance (L3) from datum (03) to depth (L8). The other hole is distance (L5) from datum (01) to depth (L9). Both holes receive 1/8 - 27 NPTF pipe threads (T1). Create two passages for the hoses and grease fittings. One passage is distance (L6) from datum (01). The other passage is distance (L7) from datum (01). Both passages are drilled and tapped identically. The information for machining each passages appears in the following two paragraphs.On the same side as datum (03), drill a hole of diameter (D3) to depth (L10). Enlarge the hole to diameter (D4) to depth (L11). Machine a 30° chamfer (A2) between diameter (D3) and diameter (D4). Chamfer (A2) must be free of nicks and scratches in