MULTIQUIP Whiteman Series Operation Manual page 41

1. To determine which blades need adjustment, place the
trowel in the test area (3/4 inch thick plate)and look for
the following conditions:
2. Pitch the blades as flat as possible. The adjustment
bolts should all barely make contact with the lower
wear plate on the spider. If one is not making contact,
adjustment will be necessary (Figure 39).
Figure 39 illustrates incorrect alignment, worn spider
bushings, or bent trowel arms. Check that the adjustment
bolt is barely touching (0.10" max. clearance) the lower
wear plate. All alignment bolts should be spaced the same
distance from the lower wear plate.
ADJUSTMENT BOLT
"DISHED"
EFFECT ON
FINISHED
CONCRETE
Figure 39. Incorrect Spider Plate Alignment
Figure 40 illustrates the correct alignment for a spider plate
(as shipped from the factory).
CORRECT
ALIGNMENT
Figure 40. Correct Spider Plate Alignment
HHNG5 RIDE-ON TROWEL • OPERATION MANUAL — REV. #1 (07/05/18) — PAGE 41
WEAR PLATE
SURFACE
GEARBOX
TROWEL
ARM
MOUNTING BAR
SURFACE
Spider Removal
Remove the spider assembly from the gearbox shaft as
follows:
1. Locate the cone point square head set screw
(Figure 41) and attached jam nut found on the side of
the spider assembly.
LOWER
Spider Plate
BLADE
Lock Washer
2. Loosen the jam nut and cone point square head set
screw.
3. Carefully lift the upper trowel assembly off of the spider
assembly. A slight tap with a rubber mallet may be
necessary to dislodge the spider from the main shaft
of the gearbox.
4. For reassembly apply Blue Loctite #242 to the spider
retaining screw and torque to 130 ft.-lb. (176 N·m).
MAINTENANCE
Upper Wear Plate
Thrust Collar Bearing
Thrust Collar
Thrust Collar Bushing
Lower Wear Plate
Retainer
Retaining Screw
Plug
Figure 41. Spider Removal
Gearbox Shaft