5) Start the filter caddy. Check to be sure oil is flowing through the filters. Operate filter caddy approximately 10 min- utes so oil in hydraulic oil tank is circulated through filter a minimum of four times. Hydraulic oil tank capacity 110 再 (29.1 侍 U.S. gal ). Leave filter caddy operating for the next steps. 6) 侍 Start the engine and run it at high idle. For the most effective results, cleaning procedure must start with the smallest capacity circuit then proceed to the next largest capacity circuit. 7) Operate all functions, one at a time, through a complete cycle in the following order: clam, steering, bucket, and boom. Also include all auxiliary hydraulic functions.
Repeat procedure until the total system capacity has circulated through filter caddy seven times, approximately 30 minutes. Each function must go through a minimum of three complete cycles for a through cleaning for oil. 侍 Filtering time for machines with auxiliary hydraulic functions must be increased because system capacity is larger. 8) Stop the engine. Remove the filter caddy. 9) Install a new return filter element. 10) Check oil level in hydraulic oil tank ; Add oil if necessary. 5-22