Smithco 13-550-C, Service Manual

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5
Service
MAINTENANCE
TIRE PRESSURE
Caution must be used when inflating a low tire to recommended pressure. Over inflating can cause tires to ex-
plode. Tires should be 5 psi (0.35bar). Improper inflation will reduce tire life considerably.
ENGINE OIL
Change and add oil according to chart below. Do not overfill. Use a high quality detergent oil classified "For Ser-
vice SE, SF, SG" SAE 30 oil. Use no special additives with recommended oils. Do not mix oil with gasoline.
SAE Viscosity Grades
Starting Temperature Range Anticipated Before Next Oil Change
Air cooled engine run hotter than automotive engines. Use of multi-viscosity oils (10W-30, etc) above 40° F
(4° C) will result in high oil consumption and possible engine damage. Check oil level more frequently if using
these types of oils.
SAE 30 oil, if used below 40° F (4° C), will result in hard starting and possible engine bore damage due to inad-
equate lubrication.
TOWING
When it is necessary to move the Super Rake without engine running, by-pass valve built into hydrostatic pump
must be "open" by truning it counter-clockwise. The valve is located on bottom left of pump. An "open" valve
allows fluid to pass through the wheels freely.When normal, driven, operation is desired, valve should be "closed
by turning it clockwise. Failure to "close" the valve with engine running means no power to wheels.
WHEEL MOUNTING PROCEDURE
1. Set park brake. Turn machine off and remove key.
2. Block one of the other wheels.
3. Loosen nuts slightly on wheel to be removed.
4. Jack up machine being careful not to damage underside of machine.
5. Remove nuts, remove Wheel.
5. Place new wheel on hub lining up bolt holes.
6. Torque nuts to 64-74 ft/lb (87-100Nm) using a cross pattern. Retorque after first 10 hours and every 200
hours thereafter.
7. Lower machine to ground and remove blocks and jack.