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NUT-TOP 4Z8686 - Caterpillar

4Z8686 NUT-TOP Caterpillar parts NUT
Alternative (cross code) number:
Caterpillar 4Z8686 NUT-TOP
Weight: 11 pounds 5 kg.

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Illustration 7 g02566718
Illustration 8 g02566686
Disconnect hose assembly (9). Remove bolts (11) and plate (10). Attach a suitable lifting device to cylinder (12). The weight of boom cylinder (12) is approximately 181 kg (400 lb). Slide pin (13) toward the boom to reposition boom cylinder (12).
Illustration 9 g02566684
Illustration 10 g02564118
Lower boom cylinder (12) onto Tooling (D). Remove hoses (14). Attach a suitable lifting device to boom cylinder (12). The weight of boom cylinder (12) is approximately 181 kg (400 lb).
Illustration 11 g02609038
Remove pin (15). Remove boom cylinder (12).
Illustration 12 g02551745
Illustration 13 g02609377
Attach a suitable lifting device to Tooling (E). The weight of Tooling (E) is approximately 95 kg (210 lb). Position Tooling (E) as shown. Install pin (13). Position pin (13) and install plate (10).
Illustration 14 g02609379
Remove bracket (16). Remove hoses (17).
Illustration 15 g02609380
Remove hose assemblies (19). Remove fittings (18). Remove clamp (22). Remove retainer (21). Remove boot (20).
Illustration 16 g06348311
Position Tooling (F) as shown. The weight of upper frame (5) is approximately 10890 kg (24000 lb). Refer to Tool Operating Manual, NEHS1328, "Lift Groups (Stand - 60 Ton)" for more information on Tooling (F).
Illustration 17 g02609381
Disconnect tube assembly (23). Remove bolts (24).
Illustration 18 g02610878
Remove bolt (24) and insert Tooling (G). Use identification marks for the connecting procedure.
Illustration 19 g02609382
Illustration 20 g02781943
Raise the machine with Tooling (C). Raise the upper frame (5) in increments of 12.70 mm (0.50 inch) from the back then the front to keep the pinion gear (25) level. Raise the machine until the machine clears the tooling and the swivel gear (25).
Illustration 21 g02611856
Use suitable towing device to pull the undercarriage away from the upper frame assembly.

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