Marshalltown SG87SH SURFACE SHARK Floor Grinder - Manual (Page 30)

PAGE 30 SG87Sh SuRFACE ShARK FLooR GRINDER
6) Check the belt tension using the spring scale or
belt tension tool midway between the two pulleys. belt
tension should measure approximately 0.22 inch at
3-1/4 to 4-3/8 lbs measured force range. FIGuRE 22.
If tension is within specifications, proceed to Step 7. If
tension is not within specifications, refer to INSTALLING
A REPLACEMENT V-BELT OR PULLEY for specific
information.
FIGuRE 22
7) belt alignment is checked with the straightedge.
Place the straightedge squarely against the
transmission pulley. Properly aligned pulleys should
also place the straightedge squarely against the motor
pulley. Remove the straightedge and rotate the motor
pulley 120 degrees. Recheck the alignment with the
straightedge. Repeat the process until the motor pulley
is rotated a full 360 degrees. Maximum allowable
misalignment is +- 1/32 inch. If pulley alignment
is not within specifications, refer to INSTALLING
A REPLACEMENT V-BELT OR PULLEY for specific
information. FIGuRE 23.
FIGuRE 23
8) Install the weight/belt cover to the main frame and
secure with the wing-type nuts. Determine that all safety
related decals affixed to the weight/belt guard are fully
readable. If any decal is hot fully readable, replace with
a factory approved, replacement part only.
9) If the machine is to be used immediately, determine
the master switch located on the operator handle is in
the oFF position and that the starter control grip is in
the oFF position before reconnecting the Floor Grinder
to the power source.
UNEXPECTED MACHINE START UP CAN RESULT
IN PROPERTY DAMAGE AND/OR PERSONAL
INJURY.
INSTALLING A REPLACEMENT V-BELT OR
PULLEY
Application: SG87SH SURFACE SHARK
Tools Required:
1 each, 9/16 inch wrench.
1 each, 9/16 inch socket with long extension and
ratchet.
1 each, 5/32 inch Allen wrench.
1 each, 16 inch minimum length straightedge.
1 each, 10 lbs minimum capacity, tension scale or
belt tension tool.
Parts required:
1 each, Part# Mb45 v-belt.
1 each, Part# MSG87Sh-0410 Pulley Assembly
(if required).
1 each, Part# MSG87Sh-0400 Pulley Assembly
(if required).
1) Disconnect the Floor Grinder from the extension
cord or power source bEFoRE performing any service
related work.
2) Position the Floor Grinder on a suitable work surface
with the v-belt approximately at waist level.
3) Remove the wing-type nuts that secure the external
weight/belt guard.