JETStream X Series - Winterizing the Unit

36
Operation Manual
Trailer Maintenance
The Jetstream Waterblast trailer requires regu-
lar inspection and maintenance to provide
safe performance and long life.
Tires
All tires supplied with Jetstream waterblast
trailers are of heavy-duty construction. Re-
placement tires must meet these original
equipment specications:
Unit Type Tire Size
Load Capacity @
Rated Pressure
3000 ST205-75R15-C 1820 lb (826 kg)
3600 LT235-85R16-G 3750 lb (1700 kg
4200 LT235-85R16-G 3750 lb (1700 kg)
4200 ST235-80R16-E 3420 lb (1550 kg)
Check tire pressure every 3 months and before
travel. Proper tire pressure is stated on the
sidewall.
Inspect tire wear every 6 months or 3000
miles (4828 km). Refer to the following chart
to diagnose tire wear. Repair as necessary to
correct abnormal wear.
Wheel Bearings
Grease the wheel bearings with a high qual-
ity moly based EP grease every 6 months or
3000 miles (4828 kilometers). All dust caps
and seals must be operational, in place, and in
good working condition.
WARNING
!!
Tire installations that do not meet or exceed these
specications may cause tire failure resulting in loss
of trailer control and/or bodily injury.
WARNING
!!
Failure to grease or properly seal wheel bearings
could lead to bearing failure resulting in wheel loss
and/or bodily injury.
Wear Pattern
Possible
Cause
Remedy
Center
Wear
Over-ination
Adjust air pressure
to correct speci-
cation
Edge
Wear
Under-ina-
tion
Adjust air pressure
to correct speci-
cation
Outside
Wear
Bent axle/
spindle
May need to re-
place axle beam
Inside
Wear
Overload-
ing or loss of
camber
Ensure the trailer
is not overloaded
Inside
&
Outside
Wear
Incorrect
alignment
when inside
and outside
on opposite
tires
Align axles
Flat
Spots
Wheel lock-
ing/tire skid-
ding
Adjust brake
shoes. Reduce
gain on brake
controller. Avoid
sudden or hard
stops.
1
2
3
4
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5 7
Lug Nuts
All wheel lug nuts supplied with Jetstream
Waterblast Trailer Units utilize a 1/2-20 UNF
thread. Replacement lug nuts must match the
wheel studs supplied with the unit.
Check the torque on the lug nuts every 500
miles (800 km). Proper torque is 100 ft-lbs.(135
N/m). Tighten Lug Nuts in sequence (Figure
47).
Figure 46: Tire Wear and Possible Cause.
Figure 47: Lug Nut Torque Pattern.