MAINTENANCE 4.9 EVERY 50 OPERATING HOURS OR WEEKLY PLANETARY GEAR BOX - CHECK OIL LEVEL see view -A-, illustration Z 20316: Move the Excavator so, that one of the four plugs (2) on the plan- etary gear box is in line with oil level marking (1). Remove plug (2). The oil level should be at lower edge of opening (2). If neces- sary add oil through filler opening (3). Insert both plugs (2 and 3) and tighten securely. SUPPORT BEARING BOX - CHECK OIL LEVEL see view -A-: Check oil level by removing oil level plug (5). Oil level should be at lower edge of opening (5). Add oil through filler opening (6) if nec- essary and install plugs (5 and 6). SPUR GEAR BOX - CHECK OIL LEVEL see view -B- and -C-:
Check oil level by removing oil level plug (8). Oil level should be at lower edge of opening (8), if necessary add oil through filler opening (9). Install level and filler plug (8 and 9). Check breather filter (19), illustration Z21771 on page page 337 for restriction. If necessary, remove breather filters, blow out with compressed air from inside to outside and reinstall. BRAKE HOUSINGS - CHECK OIL LEVEL, VIEW -C-: Check oil level by removing oil level plugs (12). Oil level should be at lower edge of openings (12). If necessary Add oil through filler openings (13) and install plugs (12) and (13). Check oil level in both brake housings of each gear.
MOTOR ADAPTER HOUSING - CHECK OIL LEVEL, VIEW -C-: Check oil level by removing oil level plugs (15). Oil level should be at lower edge of openings (15). If necessary, remove connector (16) for breather filter line and add oil through filler opening. Install level plugs (15) and screw in breather filter line connectors (16). MILEAGE INDICATOR (Special Equipment) The mileage indicator is fitted to the center bore of the spur gear box below breather filter connector (11). NOTICE Travel gears, Brake- and Motor adapter housings have differ- ent types of oil. Refer to page 285 for the correct oil specifi- cations. 335