Alamo HYDRO 15 - Manual (Page 106)

HYDRO 15 (Service Manual) 09/06
© 2006 Alamo Industrial
Section 6 - 2
Hydraulic Fluid:
Maintaining the proper level and cleanliness of the oil is very important for the continued trouble-free
operation of the mower and should be checked each morning before the mower is started. Check for any
leaks and tighten any fittings which may be loose.
1. Clean The Machine - The deck should be cleaned off at least once a day. Remove all foreign material
from the deck and structural members. Never allow collected grass and dirt to remain in the deck. This
material will decompose forming ammonia compounds which will erode the paint and metal deck. This material
is also a source of contamination any time the hydraulic system is opened or service. Keep the deck area
clean and always clean before starting any service or repairs..
2. Proper Oil Level - Maintain the oil level within the sight gauge located on the front of the reservoir. Never fill
the tank above the sight gauge level. A space is maintained above this sight gauge to allow for the expansion
of the oil.
(figure 1) . Oil is added through the breather cap pressure valve located in the top of the tank. Stand
off to one side when removing the breather cap element to prevent possible injury. Remove the breather cap
slowly to release any excess air.
(figure 2). Remove the pressure cap and add oil. Use one of the following
oils: Exxon NUTO H-100; Gulf Harmony 100 AW; or Shell Tellus 100.
3. Oil Level Low - Low oil level in the reservoir is
caused by leakage of oil. Locate the area of the leak
and repair the leak at once. Loss of fluid can cause
severe damage to the hydraulic pump and motors
(figure 1).
NOTE: After the first day of operation the mower
may require more oil to bring the oil level back into the
sight gauge. This is normal. Air trapped in the lines
and tanks was displaced by the oil, causing the oil
level to go down
(figure 2)
4. Filter Change - After the first 25 hours of opera-
tion change the oil filters. Replace the oil filters with
a new one Thereafter, replace these filters every
500 hours. The return gauges should always be in the
green color of gauge
(figure 3)
Fill Hydraulic Tank Inspection - Service & Repair
FIGURE 1 FIGURE 2
FIGURE 3