Multiquip manual HTH44T- Maintenance, Maintenance Schedule

NOTE

See the engine manual supplied with your machine for appropriate engine maintenance schedule and troubleshooting guide for problems.

At the front of the book (Page 7) there is a “Daily Pre-Operation Checklist”. Make copies of this checklist and use it on a daily basis.

CAUTION! Disconnect spark plug wires and battery cables before attempting any service or maintenance on the Ride-on Power Trowel.

ALWAYS allow the engine to cool before servicing. NEVER attempt any maintenance work on a hot! (muffler, radiator, etc.) trowel.

MAINTENANCE SCHEDULE

Change the hydraulic oil and filter after the first 100 hours of use, then change every 250 hours.

Daily (8-10 Hours)

1.Check the fluid levels in the engine and reservoir, fill as necessary.

Weekly (30-40 Hours)

1.Relube arms, thrust collar and clutch

2.Replace blades if necessary.

3.Check and clean or replace the engine air filter as necessary.

4.Replace engine oil and filter as necessary, see engine manual.

Monthly (100-125 Hours)

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

Change the hydraulic oil and filter after the first 100 hours of use, then change every 250 hours.

HTH44T— MAINTENANCE

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.

Blade speed adjustment is a two-step process. First, the left spider’s speed should be checked and/or adjusted. Second, the right spider’s speed should be adjusted to match the left.

Left Spider Speed Adjustment

The left spider’s speed is adjusted by changing the length of the rod end spacing (Figure 16) at the front of the foot pedal. Lengthening the spacing increases the blade speed; shortening the spacing decreases the blade speed.

Figure 16. 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 17, Page 21). 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 instrumentation 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 turbocharged engine should be set at 155-160 rpm with the engine at full speed.

PAGE 20 — HTH44T • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #8 (03/27/12)