JTN RIDE-ON TROWEL — OPERATION & PARTS MANUAL — REV. #5 (08/03/06) — PAGE 29
Figure 18. Worn Spider Plate
Trowel Arm Adjustment Procedure
The following procedure should be
followed to adjust trowel arms when
it becomes apparent that the trowel
is finishing poorly or in need of
routine maintenance.
A
level, clean area to test the trowel prior to and after is essential.
Any uneven
spots in the floor or debris under the trowel blades
will give an incorrect perception of adjustment. Ideally, a 5 x 5"
three-quarter inch thick
flat steel plate should be used for testing.
To determine which blades need adjustment, place the trowel in
the test area (three-quarter inch thick plate) and look for the
following conditions:
■
Pitch the blades as flat as possible and look at the
adjustment bolts. They should all barely make contact
with the
lower wear plate on the spider. If you can see
that one of them is not making contact, some adjustment
will be necessary.
■
Is the machine wearing out blades unevenly (i.e. one
blade is completely worn out while the others look new)?
Figure 18 below illustrates a "
worn spider bushings or bent
trowel arms". Check to see that adjustment bolt is barely
touching (0.10" max. clearance) lower wear plate. All alignment
bolts should be spaced the same distance from the lower wear
plate.
Figure 19 below illustrates the "
correct alignment " for a spider
plate (as shipped from the factory).
Figure 19. Correct Spider Plate Alignment
At the front of this manual there is a “
Daily Pre-Operation
Checklist ”. Make copies of this checklist and use it on a daily
basis.
CAUTION!
CAUTION!
CAUTION!
CAUTION!
CAUTION!
See the engine manual supplied
with your trowel for appropriate
engine maintenance schedule and
troubleshooting guide for problems.
Trowel Maintenance Schedules
Weekly (50-60 Hours)
■
Relube arms, thrust collar and clutch.
■
Replace blades if necessary.
Monthly (200-300 Hours)
■
Remove, clean, reinstall and relube the arms and thrust collar.
Adjust the blade arms.
■
Remove, clean, reinstall clutch.
Yearly (2000-2500 Hours)
■
Check and replace if necessary the arm bushings, thrust
collar bushings and shaft seals.
■
Check pitch control cables for wear.
■
Adjust blade speed.
ALWAYS allow the engine to
cool before servicing. NEVER
attempt any maintenance
work on a
hot! engine.
NOTE
NOTE
JTN RIDE-ON TROWEL — MAINTENANCE
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