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17. Power Engaging Clutch:
The power engaging clutch lever is located
next to the drum tilting controls so it is
convenient for the operator to stop the
mixing elements when emptying the
drum. The linkage in the power compart-
ment must be set so the drive belt does
not slip during operation and the opera-
tor must feel the lever go over-center as
it fully engages. Always disengage the
clutch when starting, stopped or empty-
ing.
18. Selection of Mortar type:
The performance of masonry is inuenced
by various mortar properties such as work-
ability, bond strength, durability, exten-
sibility and compression strength. Since
these properties vary with mortar type, it
is highly important that the mortar type
selected for a particular application is the
one that best meets the end-user require-
ments. Table 1 is a general guide for the
selection of for various masonry wall con-
struction. Selection of mortar type should
also be based on the type of masonry units
to be used as well as the applicable build-
ing code and engineering practice stand-
ard requirements such as allowable design
stresses and lateral support.
Fig. 14 POWER ENGAGING CLUTCH SYSTEM
Lever - Engaged
Linkage
Machine is shown with engine hood open
for illustrative purposes only. Never oper-
ate with hood open.
WARNING
Lever - Disengaged
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