Multiquip JA-SERIES - Manual (Page 32)

PAGE 32 — JA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
Trowel Arm Adjustment
Shown in (Figure 46) 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.
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.
Trowel Arm Flatness Test
1. Using a piece of 3/4 inch thick steel plate or any surface which
is true and flat , check all six sides of each trowel arm for
flatness.
2. Check each of the six sides of the trowel arm (hex section
only) using a ten thousands of an inch (max.) feeler gauge
(Figure 45) between the flat of the trowel arm and an
ex -
tremely flat test surface.
3. If the trowel arm is found to be uneven or bent , replace the
trowel arm. A bent trowel will not allow the trowel to operate
in a smooth fluid rotation.
4. Next, check each of the six sides of the round machined shaft
section of the trowel arm. Each section should have the same
clearance between the round of the trowel arm shaft and the
test surface.
Figure 45. Trowel Arm Flatness Test
JA-SERIES TROWEL — MAINTENANCE
Trowel Blade Removal
1. Remove the trowel blades from the trowel arm by removing
the two hex head bolts (Figure 44) from the trowel arm. Set
blades aside.
Figure 44. Trowel Blades
2. Wire brush any build-up of concrete from all six sides of the
trowel arm. Repeat this for the remaining three arms.
Trowel arms can be damaged by rough
handling or by striking exposed plumbing or
forms while in operation.
ALWAYS look-out
for objects which might cause damage to the
trowel arms.
NOTE
REMOVE
LOCK
WASHER
HEX
HEAD
BOLT
BLADE
ARM