Gehl Dynalift 663 Operator'S Manual Download

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in storing fuel supplies and the operating condi-
tions in which the machine is used.

Small amounts of water can be drained from the fuel
filter. The drain plug should be removed weekly to
drain off water accumulation until clear fuel is flowing
from the outlet.

CHECK ENGINE OIL LEVEL

With the machine on level ground, and the engine
stopped for ten minutes or more, slide open the side
engine panel and remove the engine dipstick. Wipe it
clean, re-insert it and remove to obtain a reading. If the
oil level is down, or below the ADD mark, fill with the
required amount of oil to bring the level to the FULL
mark. See the Lubrication chapter for the type of oil to
use.

CHECK RADIATOR COOLANT LEVEL

With the machine on level ground, remove the radiator
cap. Add 50/50 water and anti-freeze mixture (winter)
if the coolant level is below the filler neck. Replace the
radiator cap securely.

IMPORTANT:

If the engine is operated with a

loose radiator cap, the pressure bypass will not
work and the engine will run hot.

CHECK TRANSMISSION OIL LEVEL

The machine must be on level ground and make sure
the boom is lowered and completely retracted. With
engine and transmission at operating temperature; park
brake on, transmission in neutral and engine speed at
low idle, remove the access cover to the transmission
and hydraulic pump. Remove the dipstick and check
the oil level. Add the required amount of oil to bring
the level to the FULL mark. See the Lubricants chap-
ter for the type of oil to use.

CHECK HYDRAULIC OIL LEVEL

The machine must be on level ground and make sure
the boom is lowered and completely retracted. The
fluid MUST be cool when checking the reservoir level.
By doing this, you will reduce the possibility of over-
filling the hydraulic system, and also reduce potential
injury due to hot fluid.

Remove the front cover from the front hood section.
Loosen the filler cap to release pressure. Remove the
filler cap and check the level on the dipstick. If the oil
level is down, or below the ADD mark, fill with the
required amount of oil to bring the level to the FULL
mark. See the Lubricants chapter for the type of oil to
use.

IMPORTANT:

Be careful when removing the

reservoir filler cap so that no dirt or other foreign
matter enters the hydraulic system while the cap
is removed. DO NOT OVERFILL.

CHECK BRAKE RESERVOIR LEVEL

The brake booster master cylinder reservoir is under
the seat compartment. This compartment panel tilts
forward for access to the reservoir. Remove the reser-
voir caps to check the level. If low, fill to proper level
with hydraulic brake fluid (Type DOT3) only.

CHECK PARK BRAKE HANDLE

Check the tension when pulled. Adjust, if necessary, to
a pull of 20 Lbs (89 N)

CHECK TIRE PRESSURES

Proper tire pressure should be maintained equally for
all four tires to enhance operating stability and extend
tire life.

When installing tires on the machine, be sure that all
tires are of the same size and style. ALWAYS replace
tires with the same size furnished as original equip-
ment. Replacement tires must be purchased locally.

Check the tire pressure “cold”. All 12 ply tires should
be inflated to 55 PSI (380 kPa).

NOTE:

If the tires have been filled with water or

calcium chloride for weight, a calcium chloride tire
pressure gauge MUST be used to check the tire
pressure.

WARNING

DO NOT remove the radiator cap when the
engine is running hot or overheated. Coolant
is extremely hot and under pressure and it can
burn your skin. Allow sufficient time for the
radiator and hydraulic oil cooler to cool
BEFORE relieving the pressure and removing
the radiator cap.

PRINTED IN U.S.A.

907879/AP1198

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