CAUTION
Additives may damage the hydraulic system. Be-
fore using additives, contact your local Yale
dealer.
7. Start lift truck, and allow it to run for 30 seconds.
Check for leaks. Stop engine and check hydraulic
oil level. Add oil, if necessary. Use hydraulic oil in-
dicated in Periodic Maintenance 8000YRM1774.
Tank Repair
HYDRAULIC AND DIESEL TANKS
Inspect
WARNING
Special procedures must be followed when large
leaks or other repairs need welding or cutting. All
work must be done by authorized personnel. If the
tank is cleaned inside a building, make sure there
is enough ventilation. See the following manuals
for additional information:
• Safe Practices for Welding and Cutting
Containers That Have Held Combustibles
by the American Welding Society, F4.1 -
1999.
• Safety in Welding and Cutting, American
National Standard, AWS Z 49.1 - 1999.
WARNING
DO NOT use tools that can make sparks, heat, or
static electricity. The vapors in the tank can cause
an explosion.
CAUTION
Additives may damage the hydraulic system. Be-
fore using additives, contact your local Yale
dealer.
Make a visual inspection of all sides of the tank. In-
spect the welds for cracks and leakage. Check for wet
areas, accumulation of dirt, and loose or missing paint
caused by leakage. Areas of the tank that are not
easily seen can be checked with an inspection mirror
and a light that is approved for locations with flamma-
ble vapors.
Clean
WARNING
When cleaning the tank, do not use solutions that
make dangerous gases at normal temperatures or
when heated. Wear eye and face protection. Pro-
tect the body from burns.
WARNING
Compressed air can move particles so that they
cause injury to the user or to other personnel.
Make sure that the path of the compressed air is
away from all personnel. Wear protective goggles
or a face shield to prevent injury to the eyes.
WARNING
Be careful when cleaning with steam. Steam can
cause serious burns. Wear protective clothing,
gloves, and eye protection. Never expose your
skin to steam.
When cleaning with steam, use a hose with a mini-
mum diameter of 19 mm (0.75 in.). Control the pres-
sure of the steam by a valve installed at the nozzle of
the hose. If a metal nozzle is used, it must be made of
a material that does not make sparks. Make an elec-
trical connection between the nozzle and the tank.
Connect a ground wire to the tank to prevent static
electricity.
Hydraulic Filter Repair 0100 YRM 1766
44
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