Hydraulic System - Scag Power Equipment Cheetah SCZ52V-730FX Operator's Manual

Section 7
7.3

HYDRAULIC SYSTEM

A. CHECkING HYDRAULIC OIL LEvEL
The hydraulic oil level should be checked after the first 10
hours of operation. Thereafter, check the oil after every
200 hours of machine operation or monthly, whichever
occurs first.
- IMPORTANT -
If the oil level is consistently low, check for leaks
and correct immediately.
1. Wipe dirt and contaminants from around the
hydraulic level indicator window.
2. Visually check the level of hydraulic oil. Hydraulic
oil must be within the center of the wide postion of
the indicator window when the machine is cold. See
Figure 7-2. If the fluid is low, add 20W50 motor oil.
DO NOT overfill; (overfilling the oil reservoir may
cause oil seepage around the cap area).
FULL LEVEL
Figure 7-2. Hydraulic Oil Reservoir
B. CHANGING HYDRAULIC OIL AND FILTER
The hydraulic system oil should be changed after the first
120 hours of machine operation and every 400 hours or
annually thereafter, whichever occurs first. The oil should
also be changed if the color of the fluid has become
black or milky. A black color and/or a rancid odor usually
indicates possible overheating of the oil, and a milky color
usually indicates water in the hydraulic oil.
- IMPORTANT -
The hydraulic oil should be changed if you notice
the presence of water or a rancid odor to the
hydraulic oil.
1. Park the mower on a level surface and stop the
engine.
2. Remove the three 1/4" filter guard screws and filter
guard from both axles. See Figure 7-3. Clean any
loose debris around the perimeter of the filter.
3. Place a suitable container under the hydraulic oil
filters. Remove the cover from the left side tank to
gain access to the hydraulic expansion reservoir.
Remove the fill cap from the reservoir.
REMOVE SCREWS AND
OIL FILTER GAURD
Figure 7-3. Hydraulic Oil Filter and Drain Plug
4. Remove the hydraulic filters from both axles and
allow the fluid to drain into the container. Properly
discard the oil when the system has drained
completely. See Figure 7-3.
5. Once the hydraulic system has drained, install new
hydraulic oil filters to both axles by hand, turn 3/4
to one complete turn after filter gasket contacts the
filter base.
33
R
REMOVE OIL
FILTER