Smithco Sweep Star 48 (sn 4975 – 4982) Parts & Service Manual - Manual (Page 6)

4
Ser
vice
MAINTENANCE
Before servicing or making adjustments to machine, stop engine and remove key from
ignition.
Use all procedures and parts prescribed by the manufacturer's. Read the engine
manual.
LUBRICATION
Use No. 2 General Purpose Lithium Base Grease and lubricate every 100 hours. The Sweep Star 48 has eleven
grease fittings.
One on the top of each tower. (High Lift Only)
One on the center of park brake relay on rear axle.
One on hydrostatic pedal under the floorboard.
One on the pillow block bearing on each end of finger/brush reel.
One on castor wheel mount bracket.
One on reel clutch relay.
One on reel clutch belt tightener.
One on rod end of the tailgate cylinder. (High Lift Only)
Every 500 hours of operation, separate the hydrostatic pump from the engine, clean the splined areas and lightly
grease the male portion of the pump spline. Use either Dow Corning® G-N Metal Assembly Paste or #77 As-
sembly Paste (Kohler # 25 357 12-s).
As you remount the pump to the engine, be certain the mating surfaces are clean and free of any foreign mate-
rial, and that the pump is correctly aligned.
HYDRAULIC OIL
1. Use SAE 10W-40 API Service SG motor oil.
2. For proper warranty, change oil every 500 hours or annually, which ever is first and change the filter after
the first 20 hours, then at 100 hours, then every 250 hours thereafter.
3. The oil level should be 2" to 2 1 /
2
" (5 - 6.4 cm)from top of fill neck when 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 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 conditions.
6. If natural color of fluid is now 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 and filter immediately after fluid is cool and find
cause. Take fluid level readings when system is cold.
9. In extreme temperatures you can use straight weight oil. We recommend SAE 30W API Service SG
when hot (above 90°F (33°C)) and SAE 10W API Service SG 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 tank fill area as to
which type you put in.