(1) Disassembly of the crankshaft pulley and damper: When disassembling, first remove one mounting bolt and install one guide pin, then remove the remaining bolts, pulley, and damper, as shown in Figure 2-110. Do not use hammers or screwdrivers when disassembling the viscous damper to avoid damaging it.
Cummings INLINE 6 Diagnostic Adapter for Heavy Duty Truck High Quality
(2) Disassembly of the idler assembly: Remove the crankshaft front oil seal, as shown in Figure 2-111.
② Remove the front engine mount, see Figure 2-112.
③ Remove the gear chamber cover and rectangular seal, see Figure 2-113.
④ The engine has three idler assemblies, see Figure 2-114.
These three idler assemblies are the water pump and oil pump idler, the camshaft idler, and the hydraulic pump idler.
Remove the camshaft idler and water pump idler in the order shown in Figure 2-115. If using an SAE "B" type hydraulic pump drive, mark the position of the idler shafts when removing them. During reassembly, each shaft should be reinstalled in its original position.
Remove the hydraulic pump drive in the order shown in Figure 2-116.
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