Trowel Blade Removal
CAUTION
Disconnect the spark plug wire from the spark plug and secure away from the engine before performing maintenance or adjustments on the machine.
1.Remove the trowel blades from the trowel arm by removing the two hex head bolts (Figure 34) from the trowel arm. Set blades aside.
CA4HCTROWEL — MAINTENANCE
6.Insertalltrowelarmswithleversintospiderplate(withbronze bushing already installed) using care to align grease hole on bronze bushing with grease hole fitting on spider plate.
7.Locktrowelarmsinplacebytighteningthehexheadboltwith zerk grease fitting and jam nut.
8.
9.Install stabilizer ring onto spider assembly.
10.Lubricate all grease points (zerk fittings) with premium "Lithum 12" based grease, conforming to NLG1 Grade #2 consistency.
3
1
2
5
4
Changing Blades Only
We recommend that all the blades be changed at the same time. The machine may wobble or bounce if only some of the blades are changed at one time.
1.Place the machine on a flat, level surface. Adjust the blade pitch control to make the blades as flat as possible. Note the blade orientation on the trowel arm.
1Blade
2Blade Arm
3Hex Head Bolt
4Lock Washer
4Remove From Arm Figure 34. Trowel Blades
2.Wirebrush any
Re-Assembly
1.Clean and examine the upper/lower wear plates and thrust collar. Examine the entire spider assembly.Wire brush any
2.Makesurethatthebronzetrowelarmbushingisnotdamage or out of round.Clean the bushing if necessary. If the bronze bushing is damaged or worn, replace it.
3.Reinstall bronze bushing onto trowel arm.
4.Repeat steps 2
5.Make sure that the spring tensioner is in the correct position to exert tension on the trowel arm.
Before removing the
NOTEblades, please note the orientation of the blade on
the trowel arm.
1.Removethetwoboltsandlockwashersthatsecuretheblade to the trowel arm. Remove the blade.
2.Using a wire brush, scrape all concrete particles and foreign debris from the trowel arm.
3.Install the new trowel blade onto the trowel arm. Make sure blade is installed correctly, maintaining the proper orienta- tion for direction of rotation.
4.Reinstall the two bolts and lock washers that secure the blade to the trowel arm.Tighten both bolts securely.
5.Repeat steps 1 - 4 for all remaining blades.
CA4HC