Tennant 235E, Operator'S Manual

Page: 41 / 74

MAINTENANCE
3-9
235E MM165 (3--91)
HYDRAULIC FILTER
The hydraulic fluid filter keeps the machine
hydraulic system clean to a level of 10 microns.
The hydraulic fluid filter is located next to the
vacuum fan.
Replace the hydraulic fluid filter element after the
first 50 hours of operation and then after every
400 hours of operation.
TO REPLACE FILTER ELEMENT
1. Stop the motor and set the machine parking
brake.
FOR SAFETY: Before Leaving Or Servicing
Machine; Stop On Level Surface, Set Parking
Brake, Turn Off Machine And Remove Key.
2. Open the seat support.
A
03395
HYDRAULIC FLUID FILTER
A. Filter Element
3. Unthread and discard the hydraulic fluid filter
element.
4. Apply a thin coat of hydraulic fluid to the seal
of the new hydraulic fluid filter element.
5. Thread and hand tighten the new hydraulic
fluid filter element on the filter head.
6. Close the seat support.
7. Operate the machine and check for leaks.
Correct any leaks found.
8. Check the hydraulic fluid reservoir level and
fill as required.
HYDRAULIC FLUID LEAKS
Fluid escaping from a very small hole can be
almost invisible. Use a piece of cardboard or
wood, rather than hands, to search for suspected
leaks.
A
B
C
00002
HYDRAULIC PINHOLE LEAK
A. Cardboard
B. Pinhole Leak
C. Magnifying Glass
If injured by escaping hydraulic fluid, see a doctor
at once. Serious infection or reaction can develop
if proper medical treatment is not administered
immediately.
FOR SAFETY: When Servicing Machine, Use
Cardboard To Locate Leaking Hydraulic Fluid
Under Pressure.