Specifications

snugly. Take mounted stoneholder in one hand; look
at it lengthwise from one end, into a light to see if
there is any light between stoneholder and bottom of
abrasive. The abrasive should sit completely flat in the
holder.
Install Stoneholders and Expander Plates
Always install stoneholders and expander plates in sets.
To install, proceed as follows:
1. Verify the hone head is fully retracted.
2. It is easiest to put two holders and plates into the
head at a time, working in a counterclockwise
direction, looking down from the universal joint
(see Figures 2-10 & 2-11).
• Align angles on expander plate to corresponding
angles on cone inside of the tool.
• Insert two numbered expander plates and load
stoneholders into slots, keeping number on top of
holder and plate to the left.
• Grab the bottom of spring of one of the holder and
pull it over spring slots in bottom of holder, using
the Thumb Spring Tool
(refer to Figure 2-11).
Repeat for second holder.
• Then, go to top of hone head and pull springs over
spring slots in top of holder.
3. Proceed to next two expander plates and
stoneholders and
repeat step 2 until the hone head is
loaded with plates and holders.
4. Once all plates and holders are loaded in head,
expand and retract holders in head several times to
ensure all moving parts are seated in head properly.
Remove Stone Holders
When removing stone holders, always remove in
pairs. To remove and/or replace holders, proceed as
follows
(refer to Figure 2-11):
1. Grab spring on bottom of head in between mounted
clips and pull it down and away from bottom of
holder, using thumb spring tool (GH-50). Repeat for
second holder.
2. Then, go to top of hone head and pull springs
off of the same two holders.
3. Pull the holders out of hone head making sure
expander plates stay in the hone head.
4. Fill the empty slots in hone head with new stone
holders, and reattach springs.
5. Proceed to next two stone holders and repeat steps.
Truing Stones
Sunnen diamond abrasive honing stones have been
pre-ground to a radius and can be used directly from
the box. Bore geometry should be monitored as the
stones true in.
12
FIGURE 2-10, Install Expander Plates
FIGURE 2-9, Install Stones
STONEHOLDER
FIGURE 2-11, Install Holders
THUMB
SPRING
TOOL
STONES
SPRING
SCREW
ABRASIVE
FIGURE 2-12, GHTS Hone Head
DRIVE
TUBE
DRIVE
TUBE
GHTS
HONE
HEAD
SETSCREW
PLATES
ANGLE
STONE
CONE