PAGE 36 — BS46H SERIES WALK-BEHIND TROWEL • OPERATION AND PARTS MANUAL — REV. #3 (06/02/16)
MAINTENANCE
7. Once the correct adjustment is made, tighten the lock
nut on the trowel arm to lock in place.
8. Loosen locking nuts on the adjustment fixture, and
remove trowel arm.
9. Repeat steps for the remaining trowel arms.
REASSEMBLY
1. Clean and examine the upper/lower wear plates and
thrust collar. Examine the entire spider assembly. Wire
brush any concrete or rust buildup. If any of the spider
components are found to be damaged or out of round,
replace them.
2. Make sure that the bronze trowel arm bushing is not
damage 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 -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. Insert all trowel arms with levers into spider plate (with
bronze 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
bolt with zerk grease fitting and jam nut.
8. Reinstall the blades onto the trowel arms.
9. Install stabilizer ring onto spider assembly.
10. Reinstall lower wear plate, thrust collar and upper wear
ring in the reverse order that they were disassembled
onto 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
keyway 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
"Lithium 12" based grease, conforming to NLG1 Grade
#2 consistency.
INSTALLING PANS ONTO FINISHER BLADES
These round discs, sometimes referred to as "pans", attach
to the spiders arms and allow early floating on wet concrete
and easy movement from wet to dry areas. They are also
very effective in embedding large aggregates and surface
hardeners.
Refer to Figure 57 when installing pans onto finisher blades.
Figure 57. Z-Clip Finisher Pan Installation
1. Lift trowel just enough to slide pan under blades. Lower
finisher onto pan with blades adjacent to Z-Clips.
2. Rotate blades into position under Z-Clips. Ensure that
the blades are rotated in the direction of travel when
the machine is in operation or use the engine to rotate
the blades into position.
3. Attach the blade tie-downs to the far side of the Z-Clip
brackets with tie-down knobs as shown in Figure 57.
4. Check to make certain that the blade edges are
secured under the Z-Clips and the tie-downs are
secured completely over the edges of the blade bar
before the machine is put back into operation.
BLADE ASSEMBLY
Z-CLIP, PAN
TIE-DOWN, BLADE
KNOB, TIE-DOWN
Z-CLIP PANS
