Jeep CJ-3A Owner's Manual page 65

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CAUTION: When the vehicle is reversed, the power take-off shaft drive will turn in the reverse direction. Some farm machines
will be damaged if reverse driven. When operating trailed equipment, be sure to disengage the power take-off with the shift
lever before reversing the vehicle. Being able to reverse some power driven machines is an advantage to aid in freeing the
machine should it become clogged in operation.
Inspect the power take-off unit periodically and add sufficient lubricant to keep it at filler plug level. Keep the attaching screws
tight at all times and the breather or vent free of dirt.
When using the shaft drive, always install the shield which is provided for the safety of the operator.
PULLEY DRIVE ASSEMBLY.
The pulley drive assembly, with 8"(203 mm.) pulley, is driven through the power take-off shaft. It is held in position with four
cap screws and can be quickly removed or installed. Always remove this assembly when it is not in use to avoid damage
through accident. For pulley speed data see Page 70.
When operating the pulley drive assembly use care that the vehicle is correctly aligned so the belt runs at the center of the
pulley. Do not tighten the belt excessively: when too tight, rapid wear of the drive parts of both the machine being driven and
pulley drive assembly may occur. If correctly adjusted the hand brake will hold the vehicle when ample drive tension is placed
on the belt.
The belt pulley drive is operated from the transmission main shaft, giving the same power and speed ratios that are provided by
the transmission for the vehicle on the highway. To operate the pulley, with the vehicle standing, place the auxiliary (right
hand) transfer case shift lever in the neutral position, designated as "N" in Fig. 3.
The nine governor controlled engine speeds in conjunction with the transmission gear shift positions provide a large selection
of pulley speeds. Select the governor and transmission gear shift positions that will provide the recommended speed of the
machine being driven. Machines driven below this speed will seldom do a satisfactory job while speeds above normal will
cause rapid wear and are, in some cases, dangerous. The table on Page 70 is provided as a guide in selecting the correct control
position to secure the recommended speed.
CAUTION: When the belt drive is used, ground the vehicle with a bar or piece of chain so static electricity is dissipated or
sparks might cause a fire in dusty or inflammable surroundings.
Keep the housing filled with lubricant to the level of the filler plug. (See "Lubrication Chart".)