WARNING !<\/b><\/span>
\n At the operating temperature, the hydraulic tank is hot and under pressure.<\/span> Hot oil can cause burns.<\/span> To prevent possible injury, remove pressure in the hydraulic impulse circuit ( boom, stick, bucket, swing<\/i> ), travel<\/i> line, and oil fill cap in the hydraulic tank before all channels or hydraulic components are removed.<\/span>
\n Remove the oil tank cap when the engine is off and the lid is cool enough to hold with bare hands.<\/span><\/p><\/blockquote>\nWARNING !<\/b><\/span>
\n A hydraulic cylinder equipped with a lock valve<\/i> can hold the pressure for a long time even though the hose<\/i> that connects it has been removed.<\/span> Error in pressure discharge before removing the lock valve<\/i> or disassembling the hydraulic cylinder can cause injury or death.<\/span>
\n Make sure all pressure has been removed before removing the lock valve<\/i> or disassembling the hydraulic cylinder.<\/span>
\n Note: Cleanliness is a very important factor in improvement.<\/span> Therefore, before carrying out the discharge process, the area around the component must be clean so that no contaminant<\/i> enters the system.<\/span><\/p><\/blockquote>\nNote: Put a mark (eg multiple lines using markers) on all channels, hose,<\/i> cables, or pipes for future installation purposes.<\/span> Cover all channels, hose,<\/i> and pipes to prevent fluid discharge and contaminant<\/i> entry into the system.<\/span><\/p>\n
1. Position the bucket<\/i> over the base and the appropriate blocking<\/i> .<\/i><\/span>
\n<\/a>
\n Figure 3.24 Step 1<\/b><\/span><\/p>\n2. Discard pressure in the hydraulic system.<\/span> Look at Disassembly and<\/i> Assembly<\/i> , ” Hydraulic System Pressure-Release<\/i> “.<\/span><\/p>\n
3. Put the appropriate blocking<\/i> under the bucket of the circle<\/i> (1) .<\/i><\/span>
\n<\/a>
\n Figure 3.25 Step 3<\/b><\/span><\/p>\n4. Remove the bolt<\/i> (2) and the plate<\/i> (3) .<\/i><\/span>
\n<\/a>
\n Figure 3.26 Step 4<\/b><\/span><\/p>\n5. Install suitable lifting equipment on the bucket cylinder<\/i> (4).<\/span>
\n<\/a>
\n Figure 3.27 Step 5<\/b><\/span><\/p>\n6. Use suitable lifting equipment and equipment (A) to remove the assembly pin<\/i> (5).<\/span> The weight of the assembly pin<\/i> (5) and equipment (A) is about 250 kg (550 lb) for the H-Family Bucket<\/i> .<\/span> The weight of the assembly pin<\/i> (5) and equipment (A) is about 280 kg (615 lb) for the J-Family Bucket<\/i> .<\/span>
\n<\/a>
\n Figure 3.28 Step 6<\/b><\/span><\/p>\nTable 3.1 Equipment A<\/b><\/span>
\n<\/a><\/p>\n
7. Remove the grease hose assembly<\/i> (8) from the bucket cylinder<\/i> (4) .<\/i><\/span> Remove the bolt<\/i> (9) from the assembly pin<\/i> (7).<\/span> Remove the hose assembly<\/i> (6).<\/span>
\n<\/a>
\n Figure 3.29 Step 7<\/b><\/span><\/p>\n8. Use suitable lifting apparatus and equipment (B) to remove the assembly pin<\/i> (7).<\/span> The weight of the assembly pin<\/i> (7) and equipment (B) is about 127 kg (280 lb).<\/span>
\n<\/a>
\n Figure 3.30 Step 8<\/b><\/span><\/p>\n