All Copyright and rights are the property of Johnston Sweepers Ltd
MA1:11
V Range 501
l
651
l
801 Maintenance Manual
Johnston Sweepers Limited
Chapter - Scheduled Maintenance
The fluid flywheel transmits power from the engine to the gearbox. Its design allows for the minimum of
maintenance, minimal mechanical wear and superior longevity to the remainder of the transmission system.
With the correct attention it should last the life of the sweeper.
M02MA-028
D
C
A
B
Fluid Flywheel Filling Ports
(Viewed with fan case and fan not shown for clarity)
Maintenance
After the first 50 hours operation check the fluid level; this operation must be carried out with the unit cold.
Repeat this check every 500 hours. The fluid flywheel is fitted with a fusible plug which melts at 198°C
(recognised by four equally spaced indentations round the hexagonal socket). Oil should be replaced after
4,000 hours operation.
Draining Instructions
• Ensure the flywheel is cool before removing the level filler plug
• Using a propriety vacuum pump or oil extractor/syringe, drain the oil from the flywheel.
Filling Instructions
Ensure the flywheel’s filler port aligns with sight hole (
B
) in either of the two flywheel side covers (
C
),
approximately 2 o’clock and 10 o’clock.
Remove the side cover and spacers. Remove filler plug using a 5/16 AF allen key and fill with the
correct oil until it reaches the level of the port. (See Operators Guide page OG6:17 for oil specification)
‘
‘
During filling, carefully rock the flywheel to ensure that no air pockets form below the oil level.
DO NOT OVERFILL AS THIS WILL CAUSE THE UNIT TO OVERHEAT AND RAPID SEAL
DETERIORATION WILL OCCUR
Replace the filler plug using thread sealant to ensure a good seal. Visually check for oil leaks and replace
the flywheel cover.
(
A
)
Flywheel with side cover (
C
) removed.
(
B
)
Flywheel filler/inspection port visible
through side cover sight hole.
(
C
)
Flywheel side cover.
(
D
)
Step-up gearbox.
Page Issue B
FLUID FLYWHEEL
VT - Twin Engine
