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Maintenance, Spider removal, Changing blades – Multiquip J36E2 User Manual

Page 25

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J36e2 elecTric WalK-BeHiND TrOWel • OperaTiON aND parTs maNUal — rev. #0 (07/24/12) — page 25

spiDer remOval

Remove the spider assembly from the gearbox shaft as

follows:
1. Locate the cone point square head set screw

(Figure 22) and attached jam nut found on the side of

the spider assembly.

2. Loosen the jam nut and cone point square head set

screw.

3. Carefully lift the upper trowel/gearbox 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.

Figure 22. Spider Removal

GEARBOX

GEARBOX

SHAFT

THRUST COLLAR

BEARING

THRUST COLLAR

W/BUSHING

WEAR RING

LOWER WEAR

PLATE

SPIDER PLATE

JAM

NUT

SET SCREW

(CONE POINT SQ.HD.)

YOKE ARM

MaintenanCe

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 23.

Figure 23. 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.

TROWEL ARM

BLADE

ATTACHMENT

SCREWS

TROWEL

BLADE

BLADE

ATTACHMENT

BAR