Broderson IC-35-2G, Operation And Maintenance Manual

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5. Clean the reservoir and strainer, and replace the filter elements and hoses, except
the return hose at the inlet of the smaller filter, and the case drain hose at the
hydrostatic pump.
6. Attach a ¾-inch I.D. return hose at the hydrostatic pump case drain port and run it
into a waste oil sump or barrel. Also run the return hose disconnected from the
smaller filter into the waste oil sump or barrel. Do not plug these hoses.
7. Close the small gate valve under the reservoir and plug the case drain hose that is
disconnected from the hydrostatic transmission pump. Leave the two large gate
valves open.
8. Fill the reservoir with clean oil. Do not start the engine or move any controls until
the proper point in this procedure. If the piston pump has been removed and
replaced or repaired, follow the start-up procedure on page 3-1 9 .
9. Monitor the oil level and do not allow it to fall below 5 inch es (127 mm) from the top of
the fill neck during this procedure.
10. Run the engine at low idle during this procedure to minimize oil loss and the
possibility of pump damage from cavitation due to low oil level.
11. Start the engine and run at low idle for about 10 seconds after flow starts from both
return lines into waste oil sump. This should purge the pressure and return lines.
Stop the engine.
12. Remove the extra hose from the piston pump case drain, reconnect the regular
case drain line and fill the reservoir.
13. Leave the return hose disconnected from the small filter and leave it in the waste
oil sump.
14. Run the engine at low idle and turn the steering wheel fully to the right, then fully to
the left, and then back to straight. Stop engine.
15. Be sure the outriggers are all clear. Push both outrigger levers fully forward and
run engine until the outriggers are fully extended. Stop the engine.
16. Release the levers.
17. Reconnect the return hose. Fill the reservoir and be sure all shutoff valves are
open. Run the engine at low idle for 15 minutes to filter the oil.
18. With the front wheels off the ground, set the transmission control switch to
FORWARD and push the accelerator slowly until both wheels are turning slowly.
19. Run both wheels slowly, for 5 minutes. Then switch to REVERSE and run both
wheels slowly in reverse for 5 minutes. Run the wheels at full speed in both direc-
tions for 1 minute.