994K Large Wheel Loader Field Assembly Manual Caterpillar


Bypass Valve (Fan) - Install

Usage:

994K MM9

Parts and Specification Information



Illustration 1g03498298

Parts are located in Crate 5B.

Note: Verifying all parts are shipped and undamaged for preparation of assembly. Missing or damaged parts can be ordered prior to assembly to avoid delays during assembly.

Table 1
Item  Part Number  Part Description  Qty  Specification  Approximate Weight 
424-6143 Valve Gp 
1P-3704  Rectangular Seal     
368-6280  Hose As     
7X-2543  Bolts
(M10X1.5X120-MM) 
   
1P-4578  Half Flange     
8T-4121  Hard Washers     
8T-4196  Bolts
(M10X1.5X35-MM) 
   
7X-7729  Washers     
4J-0522  O-Ring Seals     
6V-9746  O-Ring Seal     
10  3J-1907  O-Ring Seals     
11  8C-3324  Elbow     
12  6V-8398  O-Ring Seal     
13  436-8710  Hose As     
14  8T-6876  Elbow       
15  416-8241  Control Valve Gp     
16  8T-4136  Bolts
(M10X1.5X25-MM) 
   
17  436-8706  Hose As     
18  1P-3705  Rectangular Seal     
19  437-4821  Bracket As     

Installation Procedure



    Illustration 2g03498299
    (3) 7X-2543 Bolts (M10X1.5X120-MM)
    (7) 7X-7729 Washers
    (15) 416-8241 Control Valve Gp
    (16) 8T-4136 Bolts (M10X1.5X25-MM)
    (19) 437-4821 Bracket As

  1. Install one bracket assembly (19), four washers (7), and four bolts (16).

  2. Install one control valve group (15), two washers (7), and two bolts (3).


    Illustration 3g03498300
    (9) 6V-9746 O-Ring Seal
    (10) 3J-1907 O-Ring Seals
    (11) 8C-3324 Elbow
    (12) 6V-8398 O-Ring Seal
    (14) 8T-6876 Elbow

  3. Install one O-ring seal (10), one elbow (11), and one O-ring seal (9).

  4. Install one O-ring seal (10), one elbow (14), and one O-ring seal (12).


    Illustration 4g03498896
    (1) 1P-3704 Rectangular Seal
    (2) 368-6280 Hose As
    (4) 1P-4578 Half Flange
    (5) 8T-4121 Hard Washers
    (6) 8T-4196 Bolts (M10X1.5X35-MM)
    (8) 4J-0522 O-Ring Seals
    (13) 436-8710 Hose As
    (17) 436-8706 Hose As
    (18) 1P-3705 Rectangular Seal

  5. Install one hose assembly (2).

  6. Install one rectangular seal (1) and one rectangular seal (8) on one hose assembly (13). Install one hose assembly (13), two half flanges (4), four hard washers (5), and four bolts (6).

  7. Install one rectangular seal (8) and one rectangular seal (18) on one hose assembly (17). Install one hose assembly (17), two half flanges (4), four hard washers (5), and four bolts (6).

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