Published 08-25-09, Control # 077-04 6-9
RT9130E SERVICE MANUAL SWING SYSTEM
Servicing
Normal maintenance should only consist of proper
lubrication and a periodic check of mounting bolt torque
values. Lubrication consists of maintaining the gearbox oil
level. Oil in a new gearbox should be drained and flushed
out after approximately 250 hours of operation, and
replaced with premium quality SSGL-5 after about 500
hours of operation or each year, whichever occurs first.
Operation in high humidity or polluted air areas will
require more frequent changes to minimize moisture or
contaminate accumulation.
Oil Changing
Change the oil as follows.
1. Unscrew drain plug; remove breather and dipstick.
Ensure all oil has been removed.
2. Flush the case with a light flushing oil. Flushing of the
gearbox with a solvent helps prevent an accumulation of
grit and grime. Avoid steam cleaning where moisture
and dirt might be driven into the vent of the swing
bearing.
3. After oil is drained, reinstall the drain plug and any other
plugs that were removed to drain the oil.
4. To refill with oil, make sure the breather is open. Fill until
proper location on dipstick.
5. Tighten breather and dipstick.
Checking Oil Level
1. Check level on dipstick
2. If no lubricant is visible on dipstick, add SSGL-5 until
between minimum and maximum on dipstick. Refer to
Section 9 - Lubrication.
3. Reinstall the dipstick in the brake housing.
Testing
1. Test swing of superstructure in each direction. Stop and
start swing several times.
2. Inspect for leaks. Make repairs as necessary.
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