MULTIQUIP Whiteman series Operation Manual page 45

Blade Replacement
It is recommended to replace all of the trowel blades at the
same time. If only one or some of the blades are changed,
the machine may wobble or bounce and will not finish
concrete consistently.
NOTICE
Please note the orientation of each blade on the trowel
arm before removal.
1. Place the trowel on a flat, level surface, with blocks
under the main guard ring for support.
2. Remove the bolts and lock washers from each of the
trowel arms, then remove the blades as shown in
Figure 68.
TROWEL ARM
BLADE
ATTACHMENT
BAR
TROWEL
BLADE
Figure 68. Blade Removal
3. Wire brush and remove all concrete and debris from
all six sides of each of the four trowel arms. This is
important to properly seat the new blades.
4. Install the new blades, maintaining the proper blade
orientation as noted during removal. Secure with the
bolts and washers that were removed earlier.
J3036H55 WALK-BEHIND TROWEL • OPERATION MANUAL — REV. #0 (06/27/18) — PAGE 45
Trowel Arm Removal
1. Each trowel arm is held in place at the spider plate
by a Zerk grease fitting (hex head bolt) and a roll pin.
Remove the Zerk grease fitting and the roll pin from
the spider plate (Figure 69).
SPIDER PLATE
ZERK
GREASE
CAP
FITTING
Figure 69. Trowel Arm Removal
2. Remove the trowel arm from the spider plate
(Figure 69).
3. Carefully remove the trowel arm bushing (Figure 69).
4. Examine the trowel arm bushing, and clean it
if necessary. Replace the bushing if it is worn
or out-of-round.
Trowel Arm Inspection
Trowel arms (Figure 70) can be damaged by rough handling
such as dropping the trowel, or by striking exposed
plumbing, rebar, or other objects while in operation. A
bent trowel arm will prevent smooth, fluid rotation of the
blades. If bent trowel arms are suspected, examine them
for straightness as shown below.
LEVER
MOUNTING
SLOT ROLL PIN
HOLE
TROWEL ARM
ROUND SHAFT
SECTION
TROWEL ARM
HEXAGONAL (HEX)
SHAFT SECTION
Figure 70. Trowel Arm
MAINTENANCE
ROLL PIN
TROWEL
ARM
BUSHING
BLADE ATTACHMENT
BOLT HOLE
FLAT OF
HEXAGONAL SHAFT
(TOP OF ARM)