Stow SCT36, SCT46 operation manual Trowel Arm Adjustment, Re-Assembly

SCT SERIESTROWEL — MAINTENANCE

Trowel Arm Adjustment

Shown in Figure 41 is the adjustment fixture with a trowel arm inserted. As each trowel arm is locked into the fixture, the arm bolt is adjusted to where it contacts a stop on the fixture. This will consistently adjust all of the trowel arms, keeping the finisher as flat and evenly pitched as possible.

4.Loosen the locking nut on the trowel arm lever, then turn the trowel arm adjusting bolt until it barely touches (.010") the adjusting bolt on the fixture.

5.Afterthecorrectadjustmenthasbeenmade,tightenlocknut on trowel arm lever to lock in place.

1.Locate the trowel arm adjustment tool P/N 1817. Set the adjustment tool for a clock-wise blade rotation, meaning the fixture arm is in the "UP" position.

Figure 41. Trowel Arm Adjustment Tool

2.Un-screwthelockingboltsontheadjustmenttool,andplace the trowel arm into the adjustment fixture channel as shown inFigure43. Athinshimmayberequiredtocovertheblade holes on the trowel arm. Make sure to align the trowel adjustment bolt with the fixture adjustment bolt.

3.Using an allen wrench, tighten the locking bolts on the adjustment tool and securely lock the trowel arm in place.

6.Loosen locking bolts on adjustment fixture, and remove trowel arm from fixture.

7.Repeat steps 2-7 for the remaining trowel arms.

Re-Assembly

1.Clean and examine the upper/lower wear plates and thrust collar.Examine the entire spider assembly.Wire brush any concreteorrustbuild-up.Ifanyofthespider componentsare found to be damaged or out of round, replace them.

2.Makesurethatthebronzetrowelarmbushingisnotdamage or out of round.Clean the bushing if necessary.If the bronze bushing is damage or worn, replace it.

3.Reinstall bronze bushing onto trowel arm.

4.Repeat steps 2 -3 for each trowel arm.

5.Make sure that the spring tensioner is in the correct position to exert tension on the trowel arm.

6.Insertalltrowelarmswithleversintospiderplate(withbronze bushing already installed) using care to align grease hole on bronze bushing with grease hole fitting on spider plate.

7.Lock trowel arms in place by tightening the hex head zerk grease fitting and jam nut.

8.Re-install the blades back onto the trowel arms.

9.Install stabilizer ring onto spider assembly.

10.Reinstall lower wear plate, thrust collar and upper wear ringinthereverse order thattheyweredis-assembledonto the spider shaft. Make sure that there is little or no lateral movement between the thrust collar and the spider shaft.

11.Carefully lift the upper trowel assembly, line up the key- way on gear box main shaft and insert into spider assembly.

12.Reinstall square head cone point into spider plate and tighten in place. Tighten jam nut. Use care in making sure point of set screw engages groove in gear box main shaft.

13.Lubricate all grease points (zerk fittings) with premium "Lithum 12" based grease, conforming to NLG1 Grade #2 consistency.

SCT SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #4 (04/02/07) — PAGE 31