Owners manual

4”Z1W/S CORE DRILL
16
o Adjust Safety Clutch:
1) Adjust clutch as necessary.
o NOTE: A torque wrench is necessary for this service.
o Locate the hex screws holding the gear housing together and
remove them.
o Gently pull the gear housing apart. You may use a couple flat
screwdrivers to gently apply pressure to separate the
housings.
o Take the main clutch nut off of the clutch. Apply some Loctite
type of thread glue on the clutch threads.
o Reapply the nut to the thread.
o Hold the spindle in place using the box wrench. See diagram
below.
o Use the torque wrench to tighten the clutch nut.
o Torque the tensioning nut to 15 NM (130ft/lbs).
o With the clutch nut tightened, reassemble the housings. Make
sure the orientation of the internal gears is correct and the
housings mate correctly.
o Reattach the bolts that hold the housing together.