Smithco Spray Star 1760 (Sn 176G012 – Current) Parts & Service Manual - Manual (Page 6)

Ser
vice
4
MAINTENANCE
Before servicing or making adjustments to machine, stop engine and remove key from
ignition. When servicing the spray pump or filter all control valves must be shut off if there is
liquid in the tank.
Use all procedures and parts prescribed by the manufacturer's. Read the engine manual
before operation.
The suggested maintenance checklist is not offered as a replacement for the manufacturer’s but as a supple-
ment. You must adhere to guidelines established by manufacturer for warranty coverage. In adverse conditions
such as dirt, mud or extreme temperatures, maintenance should be more frequent.
LUBRICATION
Use No. 2 General purpose Lithium Base Grease and
lubricate every 100 hours. The Spray Star 1760 has 7
grease fittings.
A. One on the rod end of hydraulic cylinder.
B. One on each the right and left spindles.
C. One on the front axle.
D. One on clutch idler arm.
E. One on each end of the drive line.
AIR CLEANER
1. Loosen cover retaining knob and remove cover.
2. Remove pre-cleaner from paper element.
3. Check paper element. Replace element as necessary.
4. Wash pre-cleaner in warm water with detergent. Rinse pre-cleaner thoroughly until all traces of detergent
are eliminated. Squeeze out excess water (do not wring). Allow pre-cleaner to air dry.
5. Saturate pre-cleaner with new engine oil. Squeeze out all excess oil.
6. Reinstall pre-cleaner over paper element.
7. Reinstall air cleaner cover. Secure cover with cover retaining knob.
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.
3. Oil level should be 1.5" (4 cm) from top of tank when fluid is cold. Do not overfill.
4. After changing oil, run the machine for a few minutes. Check oil level and for leaks.
5. Always use extreme caution when filling hydraulic oil tank or checking level to keep system free of
contaminants. Check and service more frequently when operating in extremely cold, hot or dusty condi-
tions.
6. If the natural color of the fluid has become black or smells burnt, it is possible that an overheating problem
exists.
7. If fluid becomes milky, water contamination may be a problem.
8. If either of the above conditions happen, change oil immediately after fluid is cool and find the cause. Take
fluid level readings when the system is cold.
9. In extreme temperatures you can use 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.