Specifications

MAINTENANCE
550 Gas/LPG 330650 (10--10)
36
Check the hydraulic fluid level after every 100
hours of operation. It should be above the “add”
mark on the dipstick, but not above the “full” mark
when the hydraulic fluid is at operating
temperature.
FULLADD 4 QT.
A
B
C
02355
HYDRAULIC FLUID LEVEL DIPSTICK
A. Dipstick
B. Full Range
C. Add Range
Lubricate the filler cap gasket with a film of
hydraulic fluid before putting the cap back on the
reservoir.
Do not overfill the hydraulic fluid reservoir . The
hydraulic fluid expands as it heats to its normal
operating temperature. Always allow for
expansion when filling the reservoir.
ATTENTION! Do not overfill the
hydraulic fluid reservoir or operate the
machine with a low level of hydraulic
fluid in the reservoir. Damage to the
machine hydraulic system may result.
Drain and refill the hydraulic fluid reservoir with
new TennantTrue premium hydraulic fluid after
every 2400 hours of operation. Machines have a
blue colored drop (left photo) on the hydraulic fluid
label if originally equipped with TennantTrue
premium hydraulic fluid.
TennantTrue Fluid Previous Fluid
NOTE: Change the hydraulic fluid, filter, and
suction strainer after every 800 hours for ALL
machines that have NOT consistently used
TennantTrue premium hydraulic fluid or
equivalent.
TO DRAIN THE HYDRAULIC FLUID
RESERVOIR
1. Stop the engine and set the machine
parking brake.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, Set Parking Brake, And Turn
Off Machine.
2. Allow the hydraulic fluid to cool.
3. Open the left side access door.
4. Loosen the breather-filler cap. Remove the
reservoir drain plug located on the bottom of
the reservoir to drain the hydraulic fluid.
Discard the used hydraulic fluid.
5. Flush the reservoir with clean hydraulic fluid
or suitable solvent. Do not use gasoline,
kerosene, or diesel fuel.
6. Reinstall the reservoir drain plug and
breather-filler cap.
7. Close the left side access door.
TO FILL THE HYDRAULIC FLUID RESERVOIR
1. Remove the LP tank from the top left access
door on LPG powered machines, before
opening.
W ARNING: Heavy LP Tank May Fall.
Remove LP Tank Before Opening Cover .
2. Open the left side and top access doors.
3. Remove the breather-filler cap.
4. Pour the new hydraulic fluid into the
hydraulic fluid reservoir through a 200 mesh
screened funnel. Watch the hydraulic fluid
level on the sight gauge. Do not overfill the
reservoir.
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