Marshalltown SG87SH SURFACE SHARK Floor Grinder - Manual (Page 29)

SG87Sh SuRFACE ShARK FLooR GRINDER PAGE 29
SERVICE
PREVENTATIVE MAINTENANCE CHECK LIST
Application: SG87SH SURFACE SHARK
The normal operation of the Floor Grinder produces
extreme dirt and dust, along with levels of random
vibration. before operating the Floor Grinder, the
following service list should be accomplished. This
list is for reference only and is not intended to be all
inclusive. other subject areas can be added at the
discretion of the owner(s) and/or operator(s)
1) Disconnect the Floor Grinder from the extension
cord or power source bEFoRE performing any service
related work.
2) Check all fasteners for proper torque values. If a
fastener requires retorquing, consult a torque chart for
proper value. Properly discard and replace any worn
fastener with a factory approved, replacement part
only.
3) Check the v-belt for wear. Adjust or replace
as necessary. Check pulleys for wear and proper
alignment. Many loose materials created as a result of
operating processes can be extremely abrasive.
4) Keep the Floor Grinder clean. Wash the unit after
each use. Keep loose materials from accumulating
around motor cooling fan and intake area. Determine
that the interior sections of the frame are free of
material build-ups. Such build-ups can restrict the
operating process and present a potential safety
hazard. Clean and remove any material build-up from
the Floor Grinder after each use.
5) Remove material accumulations from the exterior
surfaces of the electric motor. The electric motor is a
totally enclosed, fan cooled (TEFC) design. Keep the
fan fins clear of material accumulations to enhance air
flow over the motor exterior for cooling purposes.
DO NOT PERFORM PREVENTATIVE MAINTENANCE
CHECKS WITH THE ELECTRIC MOTOR RUNNING.
STOP THE MOTOR AND DISCONNECT THE
EXTENSION CORD BEFORE PERFORMING ANY
MAINTENANCE TO THE FLOOR GRINDER. IF
ELECTRIC MOTOR EQUIPPED, TURN THE ON/
OFF MASTER SWITCH TO THE OFF POSITION
BEFORE RECONNECTING THE EXTENSION
CORD. IMPROPER PROCEDURES CAN RESULT
IN PROPERTY DAMAGE AND/OR PERSONAL
INJURY.
CHECKING V-BELT TENSION AND ALIGNMENT
Application: SG87SH SURFACE SHARK
Proper v-belt tension and alignment are essential for
smooth transmission of horsepower and extended
service life. Improper tension and alignment will
accelerate v-belt wear and contribute to decreased
productivity. The v-belt is tensioned at the factory
with the maximum recommended force. Check the
belt tension at least two times during the first day of
operation as there will normally be a decrease in belt
tension until it has been run in. Check the belt tension
every eight hours of operation thereafter and maintain
tension within the recommended range. The correct
operating tension for a v-belt drive is the lowest tension
at which it will not slip under peak load conditions.
Tools Required:
1 each, 16 inch minimum length straightedge
1 each, 10 lbs minimum capacity, tension scale or
belt tension tool.
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 bench
with the v-belts approximately at waist level.
3) Remove the wing-type nuts that secure the external
weight/belt guard.
4) While gripping the cutout in the external weight,
slide the weight/belt guard away from the electric motor
approximately 1 inch. This will release the cover from
the forward catch mechanism.
5) Remove the weight/belt guard from the main frame.
Clean the inside of the belt guard with an appropriate
solvent. Store in an appropriate location.
Observe all applicable safety precautions for the
solvent.