Tomahawk JXPT24K, Operation Manual

Page: 24 / 44

24
13. MAINTENANCE
13.1 Maintenance Schedule
Daily (8-10 Hours)
1. Check the oil level in the engine crankcase and gear box, fill as necessary.
2. Check V-belt.
Weekly (50-60 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 (200-300 Hours)
1. Remove, clean, reinstall and relube the arms and thrust collar. Adjust the blade arms.
Yearly (2000-2500 Hours)
1. Check and replace if necessary the arm bushings, thrust collar bushings and shaft seals.
2. Check pitch control cables for wear.
3. Adjust blade speed.
13.2 Trowel Arm Adjustment
Use the following procedure to check and adjust trowel arms, and check for worn or
damaged components when it becomes apparent that the trowel is finishing poorly or in
need of routine maintenance. Look for the following indications. Trowel arm alignment,
worn spider bushings or bent trowel arms may the cause.
■ Are blades wearing unevenly? Is one blade completely worn out while the others look new?
■ Does the machine have a perceptible rolling or bouncing motion when in use?
■ Look at the machine while it is running; do the guard rings “rock up and down” relative to the ground?
13.2.1
Place the trowel in a FLAT, LEVEL area.
A level, clean area to test the trowel prior to and after is essential. Any unlevel spots in the
floor or debris under the trowel blades will give an incorrect perception of adjustment.
Ideally, a 5 x 5 Ft. (1.5 x 1.5 Meter) three-quarter inch (19 mm) thick FLAT steel plate should be
used for testing.
13.2.2
Pitch the blades as flat as possible. The adjustment bolts should all barely make
contact with the lower wear plate on the spiderbox. If one is not making contact, adjustment
will be necessary. (Figure 17
FIGURE 4
).