Service Bulletin

Toro Customer Bulletin
SP #00-01
Page 7 of 8
UPDATED April 18, 2017
ACM Diagnostic Worksheet and Reference Guide
Specialty
#00-01
Aerator Hole Spacing/Speed Test
Product: ProCore
®
Aerators
April 18, 2017
The specification for Pro Core 648 traction speed or hole spacing; The machine will
travel 50’ (12.7 m) in 34 seconds when adjusted to 2” spacing. (@ 3400 rpm)
Test Procedure;
1. Verify correct tire inflation; 12 psi (0.82 Bar or 0.84 Kg/cm)
2. On a paved surface, mark a straight line distance of 50 feet (12.7 m)
3. Adjust the hole spacing control to 2” and verify engine speed to be 3400 ± 50 rpm.
4. Perform a “running start”, meaning the unit should be rolling up to normal speed at the time
it crosses the start point in the 50’ course.
5. Time the machine with a stop watch or other suitable instrument capable of measuring 1
second resolution. Perform 3 runs of the course and average the times recorded. The
machine will travel 50’ in 34 ± 0.5 seconds if adjusted correctly.
6. If the machine does not meet this specification, follow the process in the Operator’s Manual
for Hole Spacing adjustment, located in the Maintenance Section.
Note; when making speed/hole spacing adjustments, it is necessary to secure Traction Strap (108-
6836, Item 36) with the fasteners that secure Hydrostat Shield (107-7578-01, item 35) in place. The
strap supports the assembly from flexing when the Hydrostat Shield is removed to allow access to
the traction cable jam nuts while making speed adjustments.
Traction Cable
Jam Nuts
Traction Strap in
Place with Hydrostat
Shield removed