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PAGE 34 — J36S60 WALK-BEHIND TROWEL • OPERATION AND PARTS MANUAL — REV. #1 (01/23/13)
CHANGING BLADES
It is recommended that ALL the blades on the trowel
are changed at the same time. If only one or some of the
blades are changed, the machine will not finish concrete
consistently and the machine may wobble or bounce.
Perform the following procedure when changing blades:
Please note the blade orientation on the trowel arm before
removing.
1. Lift the trowel up, placing blocks under the main guard
ring to support it.
2. Remove the bolts and lock washers from all the towel
arms, and then remove the blades as shown in
Figure 52.
Figure 52. 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 for direction of rotation.
5. Reinstall the bolts and lock washers.
TROWELARM
BLADE
ATTACHMENT
SCREWS
TROWEL
BLADE
BLADE
ATTACHMENT
BAR
MAINTENANCE
TROWEL ARM REMOVAL
1. Each trowel arm is held in place at the spider plate
by a hex head bolt (zerk grease fitting) and a roll
pin. Remove both the hex head bolt and the roll
pin (Figure 53) from the spider plate.
2. Remove the trowel arm from the spider plate.
3. Should the trowel arm inserts ( bushing ) come out with
the trowel arm, remove the bushing from the trowel arm
and set aside in a safe place. If the bushing is retained
inside the spider plate, carefully remove the bushing
4. Examine the trowel arm bushing insert (Figure 53),
clean if necessary. Replace bushing if out of round or
worn.
Figure 53. Trowel Arm Removal
TROWEL
ARM
ROLL PIN
SPIDER PLATE
ZERK
GREASE
FITTING
CAP
BUSHING