4-45. CHANGING TIRES (Con't).
Use caution not to damage plastic
hubcap (7) when changing tire. If
hubcap is cracked, lubricating oil
will leak from axle.
(2) Loosen five wheel nuts (6) until
flush with ends of wheel studs.
If tire is being changed on the road,
jacking block (9) and tractor jack
(10) must be used. If tire is being
changed at maintenance facility, a
floor jack may be used.
(3) Remove jacking block (9) from
cabinet. Place jacking block on
tractor jack (10) and position un-
der axle in front of brake chamber.
Raise semitrailer until affected dual
wheel is clear of ground.
DO NOT remove wheel nuts (6) unless all rim clamps (5) are loose. Remov-
ing wheels nuts with rim clamps still tight may cause rim clamps to fly off,
causing serious injury to personnel.
Tap on five rim clamps (5) to loosen. Remove five wheel nuts (6) and rim clamps. Remove
outer tire (3).