Tennant 215E, Operator'S Manual

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MAINTENANCE
215E MM158 (3--93)
3-8
HYDRAULICS
HYDRAULIC FLUID
Hydraulic fluid is used in some components of
multi-level dump model machines. The quality and
condition of the hydraulic fluid plays a very
important role in how well they operate. Tennant
Company has developed its own hydraulic fluid to
meet the special needs of its machines.
TENNANT Hydraulic Fluid is a specially
compounded oil with the following features not
found in many hydraulic fluids:
1. Flat viscosity curve.
2. Additives to prevent corrosion.
3. Additives to prevent oxidation.
4. Rust inhibitors.
5. Foam suppressers.
These features restrict foaming of the hydraulic
fluid and provide a high standard of lubrication to
the components.
TENNANT HYDRAULIC FLUID
VISCOSITY SPECIFICATIONS
TENNANT Hyd. Fluid
No. 65870 (HP0520)
SUS @ 100
_
F (38
_
C) 150--200
SUS @ 210
_
F (99
_
C) 46 Min.
TENNANT Hydraulic Fluids have a very flat
viscosity curve (synonymous with “high viscosity
index”). The flat viscosity curve means that the
thickness of the fluid is very constant over wide
temperature ranges.
If a locally-available hydraulic fluid is preferred, or
if products of only one oil company are used, the
hydraulic fluid used must match closely the
viscosity specifications given in the chart for
TENNANT Hydraulic Fluid, as well as the other
features described. Do not substitute automatic
transmission fluid for hydraulic fluid.
ATTENTION! Hydraulic components depend
on system hydraulic fluid for internal
lubrication. If dirt or other contaminants are
allowed to enter the hydraulic system,
malfunctions, accelerated wear, and damage
will result.
HYDRAULIC FLUID RESERVOIR
Hydraulic fluid is stored in the hydraulic fluid
reservoir. It holds 2 qt (1.8 L) of hydraulic fluid.
The reservoir is mounted on the back of the
hydraulic pump.
A dipstick has been provided to check hydraulic
fluid level. The reservoir is full when the fluid level
is between the two holes in the dipstick.
A
B
03093
HYDRAULIC PUMP
A. Battery
B. Dipstick
Check the hydraulic fluid level after every 25
hours of operation with the hopper in the
(Hopper Down) position. Do not overfill the
hydraulic fluid reservoir. Hydraulic fluid expands
as it heats to its normal operating temperature.
Always allow for expansion when filling the
reservoir.