HARNESS AS- 4664048 - Caterpillar

Assemble insulation (2) to hose (1). A suitable lubricant should be applied to the outside of hose (1) in order to reduce friction between insulation (2) and hose (1). Use only P-80 THIX. Silicone grease can be used as an alternative. Ensure that 20 mm (0.787 inch) of hose (2) is protruding from insulation (2) on the end that is cut out for the connection to the breather on the valve cover.
Illustration 13 g01865935
Illustration 14 g01866437
Remove the old breather hose assembly, by removing the hose clip that is attached to the breather outlet on the valve cover. Remove nut (K), bolt (J), and clip (M) from ECM bracket (L). Remove pipe (H) from the retaining hoop. Save pipe (H) .
Fit hose (1) with insulation (2) to pre separator (N). Make sure that 20 mm (0.787 inch) of the top end of breather hose (1) is free from insulation (2) .
Illustration 15 g01866493
Make sure that hose clamp (P) is positioned on the inside of hose retention lip (R) and that the screw for hose clamp (P) is facing upward. Tighten hose clamp (P) to 5 2 N m (44 18 lb in).
Illustration 16 g01866636
Remove bolt (S) from the bracket for the high-pressure feed pipe.
Illustration 17 g01866654
Install clip (4) with bolt (3). Position clip (4) approximately 45° from the engine pointing toward the front of the machine with the loop of the clip upward. Tighten bolt (3) to 22 5.5 N m (195 49 lb in). Make sure that the breather hose does not get kinked.
Illustration 18 g01866861
Fit tie strap with plastic clip (8) around breather hose (1). Tighten the tie strap on plastic clip (8) so that breather hose (1) is retained securely. Fit clip (8) so that breather hose (2) does not make contact with the fuel relief pipe.
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Illustration 20 g01868313
Breather hose (1) with insulation (2) installed and with breather hose (1) secured at the top and the center locations.
Secure breather hose (1) with tie strap (10) to the hole in the ECM bracket. This is the hole that was from the removal of nut (K), bolt (J), and clip (M) in Step 3. Make sure that breather hose (1) is held securely and does not make contact with any wiring. The securing of breather hose (1) at this center section must prevent any heavy contact between breather hose (1) and the engine access side panel. light contact between breather hose (1) and the engine access side panel may not be avoidable in some instances.
Illustration 21 g01868329
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Lay the outlet end of breather hose (1) down the side of the machine chassis so that breather hose (1) can be positioned between ground cable (U) and boss (T). Boss (T) is located on the front hydraulic valve. Secure hose (1) to boss (T) with tie strap (10). Tighten tie strap (10) so that hose (1) is retained against the machine chassis. An adequate gap of 101.6 mm (4 inch) between the end of breather hose (1) and the belly plate must