Product Manual

PAGE 38 — MQ62TK SERIES TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #0 (01/30/18)
PUMP MAINTENANCE
MECHANICAL SEAL LUBRICATION
The MQ62TK series pumps utilize an oil-bathed mechanical
seal system. The oil in the seal chamber lubricates the
mechanical seal and suppresses overheating. NEVER
operate the pump without water in the casing as this may
cause the seal to fail. NEVER pump salt water or chemicals
that will lead to premature component failure.
The mechanical seal chamber comes fully serviced. It holds
1¾ cups of 30 SAE non-detergent oil. Frequently check the
level of mechanical seal oil by removing the mechanical seal
bolt (Figure 21) and visually inspecting the level. DO NOT
overlubricate. Under normal conditions, drain and refill the
mechanical seal chamber once a year.
Figure 21. Mechanical Seal Bolt
PUMP
MECHANICAL
SEAL BOLT
ENGINE
LONG-TERM STORAGE
Prepare the pump for long-term storage (more than 30 days)
as follows.
 Run the engine for about three minutes, then stop the
engine.
 While the engine is off but still warm, drain the engine
oil. Fill the engine crankcase with fresh oil.
 Drain the fuel tank completely.
 Wipe off any oil or dirt that has accumulated on the
engine.
 Remove the drain plug from the pump and completely
drain any water left in the pump housing.
 Open the pump cover and clean the interior of the pump
casing. Coat the interior of the pump casing with a light
film of oil to reduce corrosion. A spray can of oil works
well for this application.
 To protect the water-cooled seals, pour a half-pint of
lubricating oil through the discharge opening on the
pump and crank the engine several times. This will keep
the mechanical seal lubricated and prevent excessive
corrosion.
 Cover the suction and discharge ports with duct tape
to prevent any foreign matter from entering the pump.
 Disconnect the battery cables.
 Cover the pump and engine with a plastic sheet and
store them out of direct sunlight, in a location that is free
of moisture and dust.
 Check the battery charge level each month to maintain
the performance of the battery.