Mec 3072RT, Service Manual

Page: 19 / 100

"3072RT / 3772RT / 3772RT HD" Service & Parts Manual - ANSI Specifications March 2008
Page 1-5
System Flushing Procedure
1. With platform fully down, drain hydraulic fluid from hydraulic reservoir into a clean, empty
container. Use an oil filter cart so the fluid may be reused if analysis is good.
2. When the hydraulic reservoir is empty, remove suction strainer and hoses.
3. Remove the bypass filter and hose.
4. Flush the hoses with clean hydraulic fluid.
5. Discard old bypass filter element and replace.
6. Flush out the tank with hoses removed from the hydraulic reservoir.
7. Reinstall all hoses removed in the previous steps.
8. Fill hydraulic reservoir with filtered, fresh hydraulic fluid (refer to Lubrication Chart).
9. Loosen output hose fittings at pump to flood with hydraulic fluid. Tighten fittings.
10. Start up the machine. Briefly operate all functions. Two or three lift cycles may be neces-
sary to purge all air from lift cylinder(s).
11. When the above procedures have been completed, fill hydraulic reservoir to full mark on
sight gauge.
12. Check all leaks and correct as necessary. Machine is now ready to be placed back in
operation.
NOTE: AVOID MIXING PETROLEUM AND SYNTHETIC BASE OILS. IT IS NOT
ADVISABLE TO MIX OILS OF DIFFERENT BRANDS OR TYPES, EXCEPT AS
RECOMMENDED.