Maintenance – Multiquip MQ600TD80 User Manual
Page 30

page 30 —mq600Td80 TRaSH pUmp • opeRaTion and paRTS manUal — Rev. #11 (10/10/11)
Maintenance
oil lubrication
Mechanical Seal
1. Place the pump on level ground.
2. Fill the sight glass with SAE #30 non-detergent oil
through the sight glass vent cap.
3. Check the oil level regularly.
4. Inspect for discoloration which may indicate that the
mechanical seal is beginning to leak, passing water
into the lubrication cavity.
5. The reservoir capacity is 3.3 oz. (0.1 liter).
Main Bearings
1. Place pump on level ground.
2. Fill sight glass with SAE #30 non-detergent oil through
the top access port until visible.
3. Monitor the lubrication for evidence of moisture
condensation particularly in areas with unusual
temperature variations.
4. Do not over-lubricate. Excess oil can cause the
bearings to overheat resulting in premature failure.
5. Under normal conditions, drain and refill each year.
6. The oil reservoir oil capacity is 8.45 oz. (0.259 liter).
impeller/Wear-plate Clearance
1. For optimal performance, the recommended clearance
between the impeller and the wear plate is 0.10 -
0.20 inches (0.25 - 0.51 mm). The clearance can be
inspected by reaching with feeler gauge inside the
discharge or fill ports.
2. Adjustment is made by removing the main pump
housing, adding or subtracting gaskets located
between the adaptor plate and the main housing.
Typically only one or two gaskets are used.
NOTICE
If lubricating after mechanical seal replacement, it is
recommended to purge seal cavity of air by removing
the weep hole plug found opposite to the sight glass.
Fill sight glass with oil until visible from the weep hole.
Reinstall plug, filling sight glass to proper level.
pRepaRaTion FoR long TeRm SToRage
For storage of the pump for over 30 days, the following is
required:
Drain the fuel tank completely.
Run the engine until the fuel in the injection system is
completely consumed.
Completely drain used oil from the engine crankcase
and fill with fresh clean oil, then follow the procedures
described in the engine manual for engine storage.
Remove the drain plug from the pump and drain out any
water from left in the housing.
Remove the pump cover and clean inside of pump
housing. Coat inside of pump housing with a light film
of oil to reduce corrosion. A spray can of oil works well
for this application.
Cover suction and discharge ports with duct tape to
prevent any foreign matter from falling into pump.
Cover pump and engine with plastic covering or
equivalent and store in a clean, dry place.