Alamo HYDRO 15 - Manual (Page 126)

HYDRO 15 (Service Manual) 09/06
© 2006 Alamo Industrial
Section 8 - 2
Tires & Wheels:
1. When Removing wheels and/or Hubs the mower should be supported under the main as well as the axles.
The deck and the wings in the lowered to the ground position. There are options as the type wheel that may
be on the mower,
"A" Laminated (Sectional) Tire and wheel = Very heavy with small OD, tire is made up of sections cut out
of tires and is flat proof. These tires and wheels are very heavy. Use caution when lifting these tires and
wheels
"B". Pneumatic Tires and Wheels, there are different tires available as an option on this model,
Phnuematic tires with 15 in. Wheels. The customer can purchase tires and wheels or wheels only and
furnish his own tires, so the type pneumatic tires and wheels may not have been the manufacturers part.
The Used Airplane tire and wheel is offered as pneumatic, foam filled and as recapped Pneumatic tires.
These tires and wheels are also heavy, use caution if lifting them. Most Airplane tires are a different size.
This will make it difficult to replace some of these wheels and tires as they may not be the same dia
around.
"C" Pneumatic Tires that are mounted on two piece Wheels. Two piece wheels bolt together two halves to
make the wheel. The air MUST be removed form these wheels before they are unbolted, completely remove
the stem valve from the wheel and wait until all air has evacuated tire and wheel before attempting to work
on this wheel. Air pressure must not exceed the rating listed on the decal on used air craft tires and wheel.
On standard Phnuematic tires do not exceed tire manufacturers pressure rating.
2. The wheels should be checked to see if wheel bearings are out of adjustment or damaged. The tires,
wheels and hubs need to be inspected for broken or lost components. Best way to check the wheel bearing
adjustment is to Jack the wheel off the ground. Grab the wheel and try to move it in or out
(figure 1). If any
movement exists, remove the wheel and inspect the bearings and repair and/or readjust the wheel. If the
wheel is operated for only a few hours with it out of adjustment the bearings and hub could be worn to the point
that they would need to be replaced. Readjustment and repacking of the wheel bearings is considered a
maintenance requirement, check the operators manual for the unit for recommended intervals.
3. Most common problems with wheel hubs is the loss of the dust cap. If run without dust cap for any time at
all the wheel hub should be removed, cleaned and components inspected. DO NOT just replace dust cap and
keep running, the hub, bearings and spindle can be damaged.
IMPORTANT INFORMATION FOR ! Laminated Tire and Wheels:
Tire - Wheel - Hub Service & Repair
Attach the wheels to the hubs. If punc-
ture-proof, Laminated (Sectional) Tires and
Wheels are used, be sure the flat side of the nut
is against the Wheel. Tighten wheel bolts to 85
ft/lbs
(This will apply only when using laminated
tires and the lug nuts are installed with flat side
against wheel).
Note direction of travel and
curvature of rubber segments in tire and install
as shown to give longest tire life (See figure 2). If
tires are mount to roll in the wrong direction the
segments of the tire tend to open allowing dirt
and mud to be wedged in between segments
forcing the segments apart and making tire
loose. These are not high speed tires and should
nut be run faster than 10 to 15 MPH max. nor for
long distances on hard ground.
FIGURE 1
Sectional Tires
Shown