Multiquip MQ600TD80 - Manual (Page 16)

page 16 —mq600Td80 TRaSH pUmp • opeRaTion and paRTS manUal — Rev. #11 (10/10/11)
General inFOrMatiOn
The MQ600TD80 Trash Pump is a self-priming centrifugal
trash pump powered by a 63 horsepower air-cooled four
stroke Deutz diesel engine. Both the intake (suction) and
discharge ports on the MQ600TD80 incorporate a 6-inch
diameter opening, which allows the pump to perform at a
rate of approximately 1,600 gpm or 6,055 lpm.
This is a self-priming pump design and the pump casing
must be filled with water before starting operation. The
engine drives a rotating disc with two (or more vanes)
called an impeller that creates an area of low pressure
inside the pump. Priming is accomplished when all air is
purged from the pump and suction line allowing water to
flow continuously into the pump.
TRaSH pUmp
Trash pumps derive their name from their ability to handle
a greater amount of debris and solids than standard
centrifugal pumps. These pumps generally handle solids up
to 1/2 the size of the discharge opening making them less
likely to clog. Also trash pumps are capable of handling
water with 25% solids by weight.
The advantage of using a trash pump is that it can be quickly
and easily disassembled in the field to remove debris in the
event the pump becomes clogged.
SUCTion liFT
This pump has a maximum suction lifts up to 25 feet at
sea level. At elevations above sea level suction lift
decreases at a rate of 1 foot of suction lift per 1,000 feet
of elevation. Therefore, when this pump is being used at an
elevation of 5,000 feet the maximum suction lift is reduced
to 20 feet. It is recommended that the pump be located as
close to the source as possible to minimize suction lift.
pUmp SUppoRT
The pump should always be placed on solid stationary
ground in a level position. To prevent the trailer from tipping,
place blocks under the trailer's bumper. In addition, place
chock blocks behind each wheel to prevent the trailer from
rolling.
neveR place the pump on soft soil. The suction hose or
pipe connection should always be checked for tightness
and leaks. A small suction leak in the hose or fittings could
prevent the pump from priming.
elevaTion
Elevations over 3,000 feet will effect the performance of
the pump. Due to less atmospheric pressure at higher
altitudes, pumps do noT have the priming ability that they
have at sea level.
A general rule of thumb is that for every 1,000 feet of
elevation above sea level a pump will lose one foot of
priming ability.
For example, in Flagstaff, Arizona where the elevation is
approximately 7,000 feet, the pump would have a suction
lift of only 18 feet rather than the 25 feet at sea level.
pUmp Clean-oUT
The clean-out cover on the MQ600TD80 has been design
for easy removal that allows for easy access to the wear
plate and impeller for cleaning and servicing.
In order to comply with local laws regarding spark arresters,
consult the engine distributor or the local Health and Safety
Administrator.
meCHaniCal Seal lUbRiCaTion
The pump uses a oil lubricated mechanical seal. The oil in
the seal chamber lubricates the seal and prevents it from
overheating. Never operate the pump without water in
the casing as this may cause the seal to fail. Never pump
chemicals which will attack the seals elastomers leading
to premature failure (See section on seal maintenance).
engine SaFeTy
Internal combustion engines present special hazards during
operation and fueling. Failure to follow the safety guidelines
described in the Rules for Safe Operation section of this
manual and the Deutz Engine Operator's Manual could
result in severe injury or death.
aCCeSSoRieS
Multiquip offers a complete line of fittings, hoses, and
clamps to properly connect the pump to match various job
conditions. Refer to the part list section this manual for a
complete list of accessories.