Group SA, Safe Maintenance
SA-1-4 • Safety SM 765, Nov ’06
General Shop Precautions
The following list contains general precautions that
should be followed when working on a lift truck.
• Always wear safety glasses for eye protection.
• Remove rings, watches, loose jewelry and open
clothing before working on a vehicle to avoid seri-
ous injury.
• Do not smoke while working on a vehicle.
• Put power key switch in the OFF position, unless
otherwise required by the procedure.
• Set the parking brake. Place chocks to the front and
rear surfaces of the tires to provide further restraint
from inadvertent vehicle movement.
• Use safety stands or blocks whenever a procedure
requires you to be under the vehicle.
• Service electric truck batteries in a well-ventilated
area to avoid the danger of lighting explosive
gases.
• Follow the Safety Instructions outlined in Group
12, Battery Handling.
• Always discharge the capacitors prior to working
on or around electrical components.
• Avoid contact with battery acid. The battery con-
tains corrosive acid which can cause injury. Follow
the instructions outlined in Group 12 and those
instructions received with your battery and charger.
Cautions
The following is a list of “CAUTIONS” connected with
the operation and maintenance of trucks equipped with
solid state control panels.
CAUTION
!
WELDING ON TRUCKS
1.Make sure the truck has no grounds.
2.Disconnect truck battery.
3.Protect electrical wiring and components
from weld spatter with a shield.
4.Ventilate battery or remove battery from
truck.
If the above is not followed, damage can
result to wiring and electrical components
on a solid state control truck.
CAUTION
!
DO NOT STEAM-CLEAN
Do not steam-clean a solid state controlled
truck. Excessive moisture will interfere with
proper operation of the solid state compo-
nents.
Solid state controls should be cleaned at regular intervals.
Blowing dirt off with an air (207 kPa [30 psi] max.) hose
periodically will, for the most part, eliminate any serious
cleaning problems. For a more thorough cleaning, water
may be hosed over the control. A mild detergent may be
applied, such as that used for washing dishes. The deter-
gent should be rinsed off, and the controls must be thor-
oughly air-dried before putting truck into service.
Periodic cleaning should preclude the need for using a
degreaser. However, if a degreaser is used, we recommend
Clark #1801146 Degreaser, or the equivalent to MS-180
Freon TF Degreaser and Cleaner. Only approved solvents
should be used to clean solid state control components.
CAUTION
!
CHECK POLARITY
Battery polarity must be correct or the truck
will not operate.
CAUTION
!
USE TRUCK BATTERY ONLY
Do not use a motor generator unit such as
“ready power” or a battery charger to move
and/or check this truck as serious damage
may occur.
IMP
RTANT
SAFETY NOTICE
Read and understand all Safety Precautions
and Warnings before performing repairs on
lift trucks.
Appropriate service methods and proper repair procedures
are essential to the safe, reliable operation of industrial
trucks, as well as the personal safety of the individual
doing the work. This Service Manual provides general
directions for accomplishing service and repair work with
tested, effective techniques. Following them will help
assure successful repair and reliable truck operation.
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