Highway Class Paver/Finishers
Drive Train
A-66
INSPECTION
Step 1:
Inspect tire.
a. Inspect for any leaks.
b. Inspect for cracks.
c. Inspect for holes or anything that could affect
the tire and the tire’s performance.
Step 2:
Inspect drive chain for any bent links.
Step 3:
Inspect sprocket.
a. Check weld of sprocket on rim of tire.
b. Check that sprocket is not cracked.
0760-86
COMPONENT TEST
Step 1:
Test tire for proper air and solution mixture.
a. Make sure tire pressure valve is at the highest
point.
b. Use proper pressure gauge to read tire pres-
sure.
ADJUSTMENT
Blaw-Knox strongly recommends that all paver/ finish-
ers be taken to a local tire service store for changing,
demounting and mounting of tires due to the possibility
of serious or even fatal accidents occurring from
following improper procedures. The tire service store
has the proper equipment and trained personnel to
perform needed services.
!
WARNING
!
If you, your employees or agents do intend to
change, demount or mount a tire, ask a tire
service store for complete instructions. Not
following correct procedures could result in
faulty positioning of the tire and/or rim parts,
causing serious physical injury or death.
These are instructions for the hydroflation of the drive
tires on the highway class paver/finisher. Follow these
instructions to displace most of the air. The hydroflation
allows the tire to be inflated to a low pressure to provide
the proper footprint and maximum tractive effort.
Hydroflation also reduces wheel bounce which affects
paving quality. Follow these instructions entirely.
NOTE
The calcium chloride solution protects against
freezing to -30
°
F (-34
°
C). To properly fill the tire,
75 gallons (284L) of solution is needed for the
PF-171 and PF-172 and 103 gallons (390L) is
needed for the PF-200.
Step 1:
Adjust tire air pressure and mixture.
a. Mix calcium chloride solution in the ratio of 100
lbs. (45 kg) of CaCl to 20 gallons (76 L) of water
producing 25 gallons (95 L) of solution.
b. Rotate the drive wheel until the pipe plug is
located at the highest point.
c. While filling the tire with solution, loosen the pipe
plug every two minutes to allow trapped air to
escape.
d. Fill all tires through the valve until solution
begins to run out through the plug hole. This
indicates the proper level of approximately 75%
full has been reached.
e. After the solution has been pumped into the
tires, tighten the pipe plug.
f. Add pressure to the drive tires of 30-35 psi (172-
207 kpa/1.7-2.0 bar) with full weight of the
machine resting on the tires.
