jcb JS300 Service Manual page 406

K Fig 4. ( T
d Craft Knife.
replaceable.
i Insert the knife blade into the sealant.
ii Pull the knife along and cut out the old sealant.
Fig 4. Craft Knife
4 Laminated glass - lift out the broken pane using glass
lifters.
Toughened glass - remove the cut off sealant and all
remaining particles of shattered glass.
5 If necessary, trim off the remaining old sealant to
leave approximately 1 to 2 mm on the upright face of
the cab frame aperture.
1-2 mm
Fig 5.
6 Apply a coat of 'Black Primer 206J' to the paintwork if:
a Paintwork was damaged or scratched during the
glass/sealant removal procedures.
b The old sealant was inadvertently cut back to the
cab frame during the glass/sealant removal
procedures.
B-37
B-37). The blades A are
K Fig 5. ( T
B-37).
9813/5100-1
Section B - Body and Framework
Preparing the Cab Frame Aperture
1 If damp or wet, dry the aperture area using a hot air
gun (sourced locally).
2 Use 'Active Wipe 205' to thoroughly clean and 'prime'
the trimmed sealant. Use a lint free cloth to apply the
'Active Wipe 205', allow 5 minutes flash off (drying)
time.
Note: Do not use any other type of cleaning fluids,
otherwise they may be absorbed into the old sealant and
ultimately prevent the new glass from bonding.
Preparing the New Glass
!M
WARNING
Laminated glass must be handled with extra care to
prevent breakage. Wherever possible, store and
handle it in a vertical attitude. When placing or lifting
the glass in a horizontal attitude it must be supported
over its whole area, not just at the edges.
BF-1-8_1
1 Make sure that the new glass correctly fits the frame
K Fig 6. ( T
aperture A.
a Put two spacer blocks B onto the bottom part of
the frame aperture.
b Install the new glass on the spacer blocks -
Always use glass lifters C. Check that there is an
equal sized gap all round the edge of the glass.
Note: The spacer blocks are rectangular in section to give
two common gap widths. If necessary they can be trimmed
to a smaller size to give an equal sized gap around the
glass.
Important: The glass edges must not touch the frame,
otherwise movement of the frame will chip and eventually
break the newly installed glass.
Cab
Cab Structure
B-38).
B-37