Preventative Maintenance Check List

Maintenance/Service

The normal operation of the SURFACE GRINDER produces extreme dirt and dust, along with levels of random vibration. Before operating the SURFACE 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)Check all fasteners for proper torque values. If a fastener requires re-torquing, consult a torque chart for proper value. Properly discard and replace any worn fastener with a factory approved, replacement part.

2)Check the V-belts 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.

3)Keep the SURFACE GRINDER clean. Wash the unit after each use. 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 SURFACE GRINDER after each use.

4)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 airflow over the motor exterior for cooling purposes.

DANGER

DO NOT PERFORM PREVENTATIVE MAINTENANCE CHECKS WITH THE ELECTRIC MOTOR RUNNING. STOPTHE POWER SOURCE AND DISCONNECTTHE SPARK PLUG OR EXTENSION CORD BEFORE PER- FORMING ANY MAINTENANCE TO THE SURFACE GRINDER.TURN THE ON/OFF SWITCHTO THE OFF POSITION BEFORE RECONNECTING THE EXTEN- SION CORD. IMPROPER PROCEDURES CAN RESULT IN PROPERTY DAMAGE AND/OR PER- SONAL INJURY.

ASSEMBLY INSTRUCTIONS/OPERATIONS

CHECKING V-BELTTENSION AND ALIGNMENT

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 tension force. Check the belt tension at least two times during the first day of operation as there will normally be a rapid 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 16 inch minimum length straightedge.

1 10 lbs minimum capacity, tension scale or belt tension tool.

1)Disconnect the extension cord or SURFACE GRINDER from the power source.

2)Position the SURFACE GRINDER on a suitable work bench with the V-belt approximately at waist level.

3)Remove the belt guard from the main frame. Clean the inside of the belt guard with an appropriate solvent. Check for signs of wear and damage.

CAUTION

Observe all applicable safety precautions for the solvent.

4)Check the belt tension using the spring scale or belt tension tool midway between the engine clutch pulley and the transmission pulley. Belt tension should mea- sure approximately 0.22 inch at 3-1/4 to 4-3/8 lbs. measured force range. FIGURE 41. If tension is within specifications, proceed to Step 5. If tension is not within specifications, refer to INSTALLING A REPLACEMENT V-BELT for specific information.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 31