PAGE 42 — J36/B46-M30 SERIES WALK-BEHIND TROWELS • OPERATION MANUAL — REV. #1 (11/17/17)
MAINTENANCE
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.
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 63.
Figure 63. 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.
NOTICE
Please note the orientation of each blade on the trowel
arm before removing.
TROWEL ARM
TROWEL
BLADE
BLADE
ATTACHMENT
BAR
Trowel Arm Removal
Refer to Figure 64.
Figure 64. 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.
2. Remove the trowel arm from the spider plate.
3. Carefully remove the trowel arm bushing and set it
aside.
4. Examine the trowel arm bushing, and clean it if
necessary. Replace the bushing if it is worn or
out-of-round.
TROWEL
ARM
ROLL PIN
SPIDER PLATE
ZERK
GREASE
FITTING
CAP
BUSHING