GENERAL NOTES: Springs are sold in sets of (4) lower (P/N
51028) and (4) upper (P/N 51027). When a spring fails, the
other springs in the set are fatigued also. The sets are factory
matched, and the entire set should be replaced.
Do not scratch or gouge the working part of the spring wire
during installation or adjustment. This would cause premature
failure.
The springs work in pairs. Two diametrically opposed springs
are a pair, and each spring in a pair should be adjusted the
same amount if adjustments are made.
LOWER SPRING SET (PIN 51028)
1. Installation:
a. Attach the (2) springs with wide coil spacing to the
frame on the right front and left rear, using (2) cap
screws through the frame.
b. Attach the (2) springs with narrower coil spacing to the
frame on the left front and right rear, same as above. Be
sure all (4) cap screws are tight.
2. Adjustment:
Lower springs do not require adjustment. Upper springs
may require adjustment if lower springs have been re-
placed. Refer to "CHECKING SPRING ADJUSTMENT"
to determine this.
UPPER SPRING SET (P/N 51027)
1. Installation:
a. A 3/16" hex key will fit through the threaded spring
mount hole into the cap screw that’s assembled inside
the spring. The cap screw fits through the mid-plate
and threads into the lower spring’s top mount.
b. Install the (2) shortest springs on the left front and right
rear.
c. Install the (2) longer springs on the right front and left
rear. Be sure the (4) cap screws are tight.
d. Install the can platform to the springs using (4) flat
head cap screws. Be sure the (4) flat head cap screws
are tight.
2. Adjustment:
The upper springs are adjusted to obtain the proper shak
ing action. To do this, the springs are threaded onto the
TOP spring mounts farther. This STIFFENS the spring and
reduces movement. Springs as received from the factory
may need to be adjusted stiffer. If your springs have already
been adjusted and are too stiff (not enough shake) they
must be backed off before proceeding.
BACKING OFF SPRINGS
The spring must be fully installed, including the can platform, to
do this.
1. Taking care not to gouge the spring wire, grasp the top of
the spring with a pair of pliers so that the pliers jaw catches
on the end of the spring coil. This will open the spring
slightly so that it can be backed off of the mount; otherwise,
the spring will not move.
2. Back each spring off 1/4 turn. Loosen the (4) flat head cap
screws on the platform, and the springs will snap back.
3. Retighten the (4) screws and repeat this procedure until
the end of each spring is 1/4" away from the platform. DO
NOT BACK THE SPRINGS ALL OF THE WAY OFF OF
THE MOUNTS.
ADJUSTING SPRINGS
1. Load a full gallon of paint on the shaker and start the
machine. If the shaker makes a clattering noise, the
springs are too loose and will require adjustment. If not,
proceed.
2. From the front of the machine, watch the mid-plate’s
movement as the shaker operates. If the right side moves
more than the left, the right front and left rear springs need
to be stiffened. If the left moves more, the left front and
right rear need to be stiffened. If both sides move the
same, all four springs must be stiffened.
3. To stiffen springs, turn off the machine, grasp the spring
with your hand, and screw the spring farther onto the end
mount 1/4 turn. If you did this to the right front, you must
also do this on the left rear. Remember, because the
springs work in pairs, you must adjust them in pairs.
Loosen the flat head cap screws on the springs that you
stiffened, and the spring will snap back. Retighten the
screws.
4. Start the machine again. Listen for clatter, and watch the
mid-plate from the front to see which side moves the
most. If necessary, stiffen the springs again 1/4 turn,
loosen and retighten the screws to allow the springs to
snap back. Repeat this procedure until the clatter
disappears and the mid-plate moves uniformly.
CHECKING SPRING ADJUSTMENT
Start the shaker and check the following:
1. If there is clattering noise, return to adjustment instruc-
tions. If no noise, proceed to step 2.
2. Watch the mid-plate from the front. If one side moves
substantially more than the other, the front spring that
doesn’t move enough and its diametrically opposed spring
need to be backed off, and the spring set that moves
more may need to be stiffened. Refer to "BACKING OFF
SPRINGS" and "ADJUSTING SPRINGS." Adjust only one
set at a time, then retest. Always be sure to allow springs
to snap back by loosening and retightening the screws.
When the mid-plate moves fairly uniformly, proceed to
step 3.
3. Start the shaker and watch the can platform’s movement
from side to side. It should move 3/4" on both sides. You
can use a ruler near the platform if you’re not sure. If it
moves more than 7/8" on both sides, stiffen all springs 1/8
turn each to reduce movement. If it moves less than 3/4",
back off all springs 1/8 turn to increase movement. If it
moves 3/4" or more, doesn’t clatter, and has fairly uniform
mid-plate movement, your shaker is properly adjusted.
