OPERATING INSTRUCTIONS
The Porta Truer stand mentioned on Page 5, Fig. 6 is an option sold separately.
While tire is mounted on a wheel balancer, True it at the same time. Below, Fig. 7 shows an earlier
version of the stand and at right a newer version in Fig. 8. All Porta Truers can mount on either the
older or newer stand. Setup directions with or without the stand is the same.
Make sure the machine lines-up ‘on center’ to tire tread. The front edge of the Top Deck must be
perpendicular to the tire treads. Or, line the front edge of the Top Deck parallel to the tire spindle.
Other than actually Truing tires this step is the most important to ensure the Truing process goes
smoothly.
2.
Adjust infeed so cutter blade almost touches tire.
When PortaTruer is in position use Infeed Drive Screw to advance cutter blade within 1/4” of tire (at
tread center.) Then use Crossfeed Drive Screw to pass cutter head / blade back and forth across the
face of the tire.
Page
5
Fig. 9 shows Pivot Arm assembled
as shipped in Position 2.
As Cutter Head pivots, access to
some tires may be restricted. If so
remove shoulder bolt from position 2
and insert into position 1. Line-up
the holes and tighten firmly.
Purpose: It limits ‘swing movement’
of Cutter Head
Consider this option when Truing
drive wheels and tires on dual rims
where access may be limited.
Fig. 9
2
1
Please note: The Top Deck and Cutter Head assembly has two pivot locations for profile truing.
Fig. 7
Fig. 8
Both older and newer PortaTruers
can be mounted on either stand
PN 6418
