General Safety Information - Strong GR4 Procedures Manual

The Strong Manufacturing GR-4 Grout Machine is primarily used for the mixing and pumping of
Gypsum or cement, sand and water slurry. In addition to the usual hazards of machinery, several special
hazards are involved in these operations.
1. Do not reach into the mixer without first shutting off the engine and removing the key from the
control panel. Also, place all hydraulic valves in the center or neutral position.
2. Make certain the Skip Bucket is in the full upright position for travel and the safety pin is
installed. Failure to do this could allow the bucket to shake down during travel and become over-
width. This would create a dangerous situation possibly resulting in property damage, personal
injury or even death.
3. Do not disconnect material hose with hoses under pressure. Always run pump in reverse until
pressure gauge reads "0" PSI, or hoses become soft. Failure to do so could result in material
blowing out under pressure and striking someone causing bruises, cuts, breaking of limb or
possible loss of sight if material enters eye.
4. Because of wear and weathering that occurs on material hose, the following teat should be
conducted at the beginning of each day to determine the conditions pf the hose.
The field test consists of the following:
a. Attach all of the sections of hose which will be used in the day's operation together just as
they will be used.
b. Pump water into the hose until it begins to discharge.
c. Cap the discharge end securely with Test Cap.
d. After advising all personnel to stand clear of the hose, operate the pump in 1
pressure indicated on the pressure gauge registers the maximum pressure the pump will
produce and hold this pressure for 30 seconds.
e. Reverse the pump until "0" PSI pressure indicates on the gauge and the discharge hose
becomes soft. (See also Rule No. 4)
Important

General Safety Information

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