Copyright
©
2007 Terramite Corporation
2.12
WWW.TERRAMITE.COM/SAFETY
Charleston, WV/USA
USA 1.800.428.3772
Intl. 1 .304.776.4231
Read Operators Manual For Safety
PARTS MANUAL
Service Operations
&
Hydraulic System Service
Check Hydraulic Oil Level Daily
Before checking the hydraulic oil sight gauge, all cylinders
should be retracted. The correct oil level is halfway up
the sight gauge. To avoid damage to the hydraulic pumps,
drain and replace milky-looking oil. Proceed as follows to
drain the oil out of the reservoir tank.
Hydraulic Oil Filter
When the machine is new, the system oil and filter should
be changed within the first 50 hours. After that, every 200
hours. Fill system with API SF/CD 10W below 40 degrees.
Oil should be changed on a level surface. It is
recommended that the oil be changed right after use while
the oil is warm.
Hydraulic Oil Leaks Can Be Dangerous
WARNING!
As this may be your first experience with a
machine that functions primarily through hydraulic
pressure, never inspect or put your hands close to any part
of the hydraulic components of the machine while the
engine is running or within two minutes after being shut
down. If injured by escaping fluid, go to the emergency
room of the nearest hospital at once and tell them the nature
of the injury. If there is not a hospital in the vicinity, call a
physician. Serious infection or a reaction such as gangrene
can develop if proper medical treatment is not administered
immediately.
Minor Hydraulic Oil Leaks
Oil leaks are often difficult to locate, as oil may leak from
areas in the machine that are hidden from view. However,
if you can locate the leak, take a cloth and completely dry
everything around the leak to determine how fast the oil is
escaping. A drop of oil every 10 seconds is only 1/2 oz.
per hour. Do not use teflon tape to try to stop a leak, as it
can get loose in the system. You can easily over tighten a
fitting or hose wrapped with teflon, causing a housing to
crack. The preferred sealant is Loktite™ hydraulic thread
sealant with teflon paste.
DANGER! Oil and Fittings Get Hot
It is normal for the hydraulic oil to reach 170 degrees; and
the hydraulic hoses, cylinders and components, acting as a
large passive radiator, can reach temperatures of over 200
degrees. However, if the surface or hydraulic oil
temperatures exceed these temperatures, it may be caused
by having a control valve held open too long. Always return
control valve to neutral when not in use. It could also
indicate a low oil supply or contaminated oil. If low, refill.
If contaminated, drain and refill with new oil, and replace
filter. It could also indicate a kink or dent in a hose line or
a worn pump. (See Service Manual for Pump
replacement.)
NOTE:
Always make sure major leaks are contained
and the oil disposed of in a proper manner. Stains on
concrete may be removed by applying a mixture of oil dry
and solvent. Let mixture set for a few hours before
removal. Dispose of according to applicable Local/State/
Federal Laws.
Changing the Hydraulic System Oil
1. Make sure all the cylinder rods are fully retracted.
2. Remove the sump line.
3. Remove the sump strainer, wash it in solvent, dry
thoroughly.
4. Replace in reverse order.
5. Fill the system with recommended oil until it reaches
the proper level.
NOTE:
There is no need to bleed the hydraulic system,
the air will come out of the oil by itself. The machine may
vibrate for a few minutes until the air purges. Be sure to
dispose of your waste oil in a manner acceptable to Federal,
State and local authorities.
Some Tips on Hydraulic Hoses
Inspect hoses regularly for nicks, cuts and wear. There
are two wire braid layers under the rubber outer cover.
When wire is exposed but undamaged, the hose still may
be used, but should be replaced as soon as possible.
If You Need New Hydraulic Hoses or Parts
All hoses are JIC. Hoses may be obtained from Terramite
Corporation or any industrial rubber supplier or hydraulic
shop. Return the old hoses so they can match them. Short
hoses may be made from the good portion of a damaged
hose.
