NOTE
See the engine manual supplied with your machine for ap- propriate engine maintenance schedule and troubleshooting guide for problems.
At the front of the book (Page B) there is a “Daily
CAUTION!
Disconnect spark plug wires and battery cables before attempt- ing any service or maintenance on the
MAINTENANCE SCHEDULE
Daily (8-10 Hours)
1.Check the fluid levels in the engine and reservoir, fill as necessary.
Weekly
1.Relube arms, thrust collar and clutch
2.Replace blades if necessary.
3.Check and clean or replace the engine air filter as neces- sary.
4.Replace engine oil and filter as necessary, see engine manual.
Monthly
1.Remove, clean, reinstall and relube the arms and thrust collar. Adjust the blade arms.
Yearly (500-600 Hours)
1.Check and replace if necessary the arm bushings, and thrust collar bushings.
2.Check pitch control cables for wear.
3.Adjust blade speed.
4.Replace hydraulic fluid and both hydraulic filters.
NOTE
After the first 200 hours, replace the hydraulic filter cartridges.
MAINTENANCE PROCEDURES
Checking/Adjusting Blade Speed
Because the two hydraulic drive motors operate independent of each other, the blade speed between them may vary. If the unit’s steering is difficult to control, the blade speeds may need to be checked, or if the spider is spinning noticeably faster or slower than the other side, the blade speed may need to be checked. It is also recommended that the blade speed be checked at least once a year.
HTH — MAINTENANCE
Blade speed adjustment is a
Left Spider Speed Adjustment
The left spider’s speed is adjusted by changing the length of the rod end spacing (Figure 15) at the front of the foot pedal. Lengthening the spacing increases the blade speed; shortening the spacing decreases the blade speed.
ROD END
ADJUSTMENT
NUT
Figure 15. Blade Speed Control Foot Pedal
Right Spider Speed Adjustment
The right spider’s speed is adjusted by changing the length of the connecting rod on the pump actuation levers (Figure 16, Page 17). This rod is basically a turnbuckle. Rotating it in one direction increases the length and corresponding spider speed. Rotating it the opposite direction decreases the length and spider speed. The right spider’s speed should be within 3 rpm of the left.
A good starting point in the adjustment process is to adjust the rod such that both spiders begin to rotate at the same time when the foot pedal is slowly depressed. This will, generally, get the speeds fairly close. Close enough for use if instrumen- tation is unavailable (i.e. on the job site). From this point on, some form of instrumentation is required to verify that the right spider speed is within the tolerance specified above. A strobe or magnetic pickup type speed indicator is recommended to verify the speeds.
The speeds should be adjusted on a dry concrete floor with the blades pitched flat. Units with a Kubota engine should be set at