Stone WolfPac 3100, Service & Parts Manual, Page: 25 / 124

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3. MAINTENANCE
WolfPac 3100/WolfPac 3100R/WolfPac 3100D
WAY OF DISPOSING BY CHECKING
WITH LOCAL CODES.
•
ALSO, OBSERVE THE RELEVANT
ENVIRONMENTAL PROTECTION
REGULATIONS WHEN DISPOSING OF
OIL, FUEL, COOLANT, BRAKE FLUID,
FILTERS AND BATTERIES.
3.15 VALVE CLEARANCE
Due to special tool requirements and training, an
authorized engine dealer should perform this service
unless the owner has the proper tools and proper shop
manuals.
3.16 HYDRAULIC OIL
ESCAPING HYDRAULIC FLUID UNDER
PRESSURE CAN HAVE SUFFICIENT FORCE
TO PENETRATE THE SKIN, CAUSING
SERIOUS PERSONAL INJURY.
HYDRAULIC FLUID ESCAPING UNDER
PRESSURE FROM A VERY SMALL HOLE CAN
BE ALMOST INVISIBLE. USE A PIECE OF
CARDBOARD OR WOOD TO SEARCH FOR
POSSIBLE LEAKS. NEVER USE YOUR HANDS
TO DETECT PRESSURE LEAKS. IF YOU ARE
INJURED BY ESCAPING HYDRAULIC FLUIDS,
SEE A DOCTOR AT ONCE. SERIOUS
INFECTION OR REACTION CAN DEVELOP IF
PROPER MEDICAL TREATMENT IS NOT
ADMINISTERED IMMEDIATELY.
Do not mix hydraulic oils. Check oil level daily, replace
hydraulic oil every 800 hours.
•
Remove return filter cap slowly.
•
Remove drain plug and drain into suitable
container.
•
Clean drain plug, apply thread sealant to the
plug, install and tighten.
•
Add fresh hydraulic oil until level is visible in
the sight gauge. A 1/4 – 1/2 air bubble will be
seen at the top of the gauge.
•
Install and tighten return filter cap.
•
Idle engine 2-3 minutes, stop engine and check
for proper hydraulic oil level and leaks.
CAUTION: If hoses, filter and/or hydraulic
components were changed, start the engine and purge
the air from the system prior to checking the oil level.
To do this, idle the engine for three minutes with control
lever in neutral position. Slowly engage forward to
reverse. This allows fluid to replace air introduced with
the filter change. If this procedure is not followed,
partial or complete failure of the pump may result.
NOTE: When changing the hydraulic oil, it is
recommended to also change the hydraulic oil filter.
3.17 HYDRAULIC OIL FILTER
Replace every 100 hours or when clog indicator needle
is between 2 and 5. Never let the filter be completely
clogged.
CAUTION: Never overfill the hydraulic tank. Use the
sight gage located on the hydraulic tank. A 1/4-1/2” air
bubble will be seen at the top of the gauge showing the
fluid level. Before disconnecting any hydraulic lines, be
sure engine is shut off and relieve all pressure. Before
applying pressure to system, be sure all connections are
tight and lines, fittings and hoses are not damaged.
3.18 HYDRAULIC BREATHER CAP
Replace every 800 hours or yearly. To replace breather,
pry it out with a flat head screw driver. To install
breather, push it in with fingers.
3.19 GREASE FITTINGS
Use a grease gun to grease fittings. Remove the blue
protection cap off fitting before greasing.
•
Hinge (4) fittings
•
Left rear bearing (1) fitting
WARNING