Smithco Spray Star 3000 (sn 3500 – Current) Parts & Service Manual - Manual (Page 6)

4
Ser
vice
MAINTENANCE
LUBRICATION
Use No. 2 General purpose Lithium Base Grease and lubricate
every 100 hours. The Spray Star 3000 has 5 grease fittings.
A. One on each the right and left spindles.
B. One on both rod ends of the tie rod.
C. One on the rod end of the hydraulic cylinder.
HYDRAULIC OIL
1. Use SAE 10W-40 API Service SJ or higher motor oil.
2. For proper warranty, change oil every 500 hours or annually, which ever is first and change both filters
after the first 20 hours, then at 100 hours, then every 250 hours thereafter.
3. The oil level should be 4" (10 cm) from the top of the fill tube when the fluid is cold. Do not overfill.
4. After changing oil and/or filter, run the machine for a few minutes. Check oil level and for leaks.
5. Always use extreme caution when filling the hydraulic oil tank or checking the level to keep the system
free of contaminants. Check and service more frequently when operating in extremely cold, hot or dusty
conditions.
6. If the natural color of the fluid has become black or smells burnt, it is possible that an overheating prob-
lem exists.
7. If the fluid becomes milky, water contamination may be a problem.
8. If either of the above conditions happen, change oil and filter immediately after fluid is cool and find the
cause. Take fluid level readings when the system is cold.
9. In extreme hot or cold temperatures you can use a straight weight oil. We recommend SAE 30W API
Service SJ or higher when hot (above 90°F (33°C)) and SAE 10W API Service SJ or higher when cold
(below 32°F (0°C) ambient temperature). Use either motor oil or hydraulic oil, but do not mix.
10. Oil being added to the system must be the same as what is already in the tank. Mark the tank fill area as
to which type you put in.
TIRE PRESSURE
Caution must be used when inflating a low tire to recommended pressure. Over inflating can cause tires to ex-
plode. Front tires should be 20 psi (1.4 bar) and rear tires should be 18 psi (1.3 bar). Improper inflation will
reduce tire life considerably.
WHEEL MOUNTING PROCEDURE
1. Set park brake. Turn machine off and remove key.
2. Block wheel on opposite corner.
3. Loosen nuts slightly on wheel to be removed.
4. Jack up machine being careful not to damage underside of machine.
5. Place wheel on hub lining up bolt holes.
6. Torque to 64-74 ft/lb (87-100 Nm) using a cross pattern. Retorque after first 10 hours and every 100
hours thereafter.
7. Lower machine to ground and remove blocks.