FIREWALL AS 1052805 - Caterpillar

Illustration 1 g00586893
Swivel (1) Retainer (2) Cover (3) Drain port (4) Drain hole (5) Port (6) Seal (7) Port (8) Port (9) Housing (10) Port (11) Port (12) Flange (13) Seal (14) Rotor (15) Plate (16) Port (17) Port (18) Port (19) Port (20) Port (21) Port (22) Swivel (23) Support (24) Forward direction of track frame
Table 1
IDENTIFICATION of PORT and CIRCUIT    
Ports (Housing)     Ports (Rotor)     Circuit    
7     18     Right travel (reverse)    
10     21     Right travel (forward)    
8     20     Left travel (forward)    
5     17     Left travel (reverse)    
3     19     Drain    
11     16     Change of Travel speed    Swivel (22) accomplishes two functions. One function is supplying pump oil from the upper structure, which swings, to the travel motors of the lower structure, which does not swing. The other function is providing a means of returning oil to the hydraulic tank from the travel motors.Housing (9) is bolted to the upper structure through support (23). Rotor (14) is bolted to the lower structure through plate (15). The ports of housing (9) are open to the ports of rotor (14). These ports are open through passages in housing (9) and rotor (14) .Seal (6) for high pressure and seal (13) for low pressure are provided between the sliding surfaces of housing (9) and of rotor (14). Seals (6) and (13) prevent oil leakage between the passages.