SkyTrak 6036 Service Manual - Manual (Page 54)

Section 5. Wheel Assembly, Tires, and Axle
5-9 Model 6036/6036T S/N 9B0499 and Before
6. Lubricate a new rubber O-ring. Place O-ring
in groove on one side and stretch O-ring
snapping it into place rather than rolling it into
place. The lubricate the entire O-ring groove
areas with an approved vegetable-based
lubricant.
NOTE: It may be necessary to hold the side
flange down with the flat end of the tire iron to
expose the O-ring groove.
7. Check the components to make certain they
are correctly assembled . The lock ring must
be fully seated in its gutter.
8. Partially inflate tube and insert in tire casing
with valve located near valve hole in rim.
Attach valve retrieval tool to valve and thread
tool through valve hole (inserting the tube and
attaching the tool may be facilitated by placing
a block under the tire).
9. Inflate tire using hydrofill as described in
paragraph 5.1.10.
5.1.13 Mounting Optional Tire
on Single Piece Wheel
1. Be sure you’ve read and understood the
warning notices and general instructions in
paragraph 5.1.
2. Install the valve stem, Fig. 5.3, into the hole in
the rim and tighten to 45 to 55 lb-inch (5 to 6,2
N m). Make sure parts are clean, repainted if
necessary, and have been inspected for
damage and cracks before proceeding with
mounting.
3. Place rim on floor with narrow ledge on top.
4. Lubricate bottom tire bead and top rim flange
with a thin solution of vegetable oil soap in
water or equivalent rubber lubricant recom-
mended for this requirement (never use
petroleum-base or silicone lubricants).
NOTE: A mechanical bead unseating and seating
tool may be purchased from the Iowa Mold
Tooling Company to facilitate step 5.
5. Push bottom bead over rim as far as possible.
Use 36" tire irons to work the first bead
completely over rim flange, taking small bites
and being careful not to damage bead.
NOTE: On deep well rims, start bead on rim
nearest deep well, Fig. 5.3.
6. Partially inflate tube with air and insert in tire
casing with valve located near valve hole in
rim. Attach valve retrieval tool to valve and
thread tool through valve hole (inserting the
tube and attaching the tool may be facilitated
by placing a block under the tire).
7. Starting opposite the valve, use tire irons to
lever top bead over the rim flange and down
into rim well. Be careful to avoid pinching tube
with tire irons. Locking pliers may be used to
“keep your place”. When bead is well started
lubricate remaining unmounted portion of tire
bead and rim flange. Taking small bites,
spoon tire bead over rim flange until final
section drops over at valve.
8. Thoroughly lubricate tire beads and rim bead
seats on both sides of tire.
9. Center tire on rim and inflate to fully seat bead
[do not exceed 35 psi
(2,4 bar)] using an
extension hose with clip-on chuck and gauge
to permit operator to stand clear of tire. Then
remove valve core and completely deflate.
Reinsert valve core and reinflate to recom-
mended pressure as described in paragraph
5.1.10.
NOTE: If either bead should fail to seat at 35 psi
(2,4 bar) inflation, the tire may be pinched between
tire bead and rim or something else is interfering
with proper mounting. Do not increase pressure to
seat beads, but remove valve core and completely
deflate. Break both beads loose from rim, relubri-
cate both tire beads and rim bead seat areas.
Reinstall core and repeat inflation procedures.
5.1.14 Connecting Core Ejector Tool
to Tire Valve Stem
1. Be sure you’ve read and understood the
warning notices and general instructions in
paragraph 5.1.
2. With the pump not running and pump valve in
CHECK position, screw core ejector body onto
stem with handle (4) of core ejector pulled out.
3. Push handle of core ejector in until it makes
contact with the core housing of the valve.
4. Hold the core ejector in you left hand and strike
the handle (4) with your right hand to force the
core housing in ejector chuck (6).
5. Turn handle (4) counterclockwise to unscrew
the core housing, pushing inward lightly so you
can feel the threads disengage when com-
pletely unscrewed.
6. Pull handle (4) out as far as it will go to retract
core housing into ejector body. The handle will
pull out easier if rotated while pulling, as
packing nut (7) should be tight enough to
prevent air or liquid leaks.