MULTIQUIP LD6 Operation Manual page 41

TROWEL ARM INSPECTION
Trowel arms can be damaged by rough handling such
as dropping the trowel on a pad or by striking exposed
plumbing, forms or rebar while in operation. A bent trowel
arm will prevent smooth, fluid rotation of the blades. If bent
trowel arms are suspected, examine them for straightness
as follows:
1. Place the trowel arm onto a thick steel plate, granite
slab, or any other surface which is flat and true
(Figure 47).
LEVER
MOUNTING SLOT
(LEFT ARM SHOWN)
ROUND SHAFT
SECTION
MACHINED
SHAFT SECTION
FEELER GAUGE
(0.005 IN./0.127 MM)
FEELER GAUGE
(0.004 IN./0.10 MM)
Figure 47. Checking Trowel Arm Straightness
2. Check each flat (2 total) of the machined shaft section
of the trowel arm (Figure 47). A feeler gauge of .004 in.
(0.10 mm) should not pass between the flat of the
trowel arm and the test surface along its length on the
test surface.
3. Check the clearance between the round shaft and the
test surface as one of the flat sections of the arm rests
on the test surface (Figure 47). Rotate the arm to each
of the flat sections and check the clearance of the round
shaft. Use a feeler gauge of .005 in. (0.127 mm). Each
section should have the same clearance between the
round of the trowel arm shaft and the test surface.
4. Replace the trowel arm if it is bent or uneven.
LD6 RIDE-ON POWER TROWEL • OPERATION MANUAL — REV. #0 (02/10/20) — PAGE 41
FLAT OF
MACHINED SHAFT
(1 OF 2)
ROLL PIN
HOLE
BLADE
ATTACHMENT
BOLT HOLE
FLAT TEST
SURFACE
Trowel Arm Adjustment
Figure 48 illustrates a trowel arm adjustment tool. As a
trowel arm is locked into the adjustment tool, the trowel 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.
ADJUSTMENT
BOLT
DISTANCE
Figure 48. Trowel Arm Adjustment Tool
(Side View)
1. Locate a trowel arm adjustment tool (P/N 9177).
2. Place the fixture arm in the correct position (up or
down) for the trowel arm's direction of rotation. For
trowel arms that rotate clockwise, place the fixture
arm in the UP position (Figure 49A). For trowel arms
that rotate counterclockwise, place the fixture arm in
the DOWN position (Figure 49B).
Figure 49. Fixture Arm Position
3. Adjust the fixture adjustment bolt distance shown in
Figure 48 to 0.15 in. (3.81 mm).
MAINTENANCE
LOCKING
NUT
FIXTURE
ARM
SIDE VIEW
A
B