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13.7 Disassembling the engine.
For several reasons, the engine may need to be removed, like changing V-belts and checking the
main clutch inside.
Hereunder a detailed description is made for doing it the right way.
13.7.1 Preparation.
To prepare for disassembling the engine, or having a closer view at some of the inside items, it is
important to understand the right setup of the construction. The following steps are important, see
Fig. 13 :
1.
Put the whole unit at a leveled hard surface.
2.
Put the Verti-Drain unit with the front roller ( set at 150 mm [6”] working depth )on the
ground and remove the lock pin 2, or use a little weight compensation for having the toplink
13 in balance.
3.
Remove the seat assembly 3 by unscrewing the 4 nuts 4.
4.
Remove the battery cables 5 (black= - and red is +). Take battery out as well.
5.
Although it might not be necessary, it is better to disconnect the hydraulic hose 6 at its
connection. Be aware of some oil spillage. Disassemble the hose clamps 7 as well and lay the
hydraulic hose on the Verti-Drain.
6.
Since the Verti-Drain is on the ground, the V-belt drive to the Verti-Drain is under pressure,
via a spring around bolt 12. We can take the pre-tension away by putting a bush on bolt 12
and screw a nut on. However if we are prepared, we don’t have to do so.
7.
Pin 9 should be removed, after nut 8 has been unscrewed. NOTE. It is very important to
check whether the Verti-Drain is in balance. With the Verti-Drain on the ground, the
hydraulic cylinder should be in. Only a little weight may hang on the toplink.
8.
After pin 9 is removed, the toplink can be partly turned backwards, or taken away fully by
removing pin 10 as well. Be aware that the idler assembly hinges around the same pin 10
9.
When the toplink is removed we have full access to the clutch and V-belt drives. We can
check the condition of these components.
* Be sure the unit is securely blocked
.
13.7.2 Main drive shaft assembly.
The main drive shaft is tightly connected to the crankshaft and drives the hydraulic pump directly
all the time the engine runs and the Verti-Drain / transmission when the clutch is engaged.
In Fig. 14 an overall view is given of this main drive shaft. First some notes on specific items:
-
V-belt 2 drives the transmission, see chapter 13.4
-
Cable tree 1 has a loop under the main clutch. When the clamp under the main clutch is
removed, the engine has enough space to move. So DO NOT remove the cable tree.
-
V-belts 3 drive the Verti-Drain. These belts are tightened by the spring loaded idler,
assembled in the toplink assembly.
-
The main end bearing 4 holds the drive shaft end in place. It is important that the collar on the
drive shaft lays tight to the bearing all the time.
-
Set screw 5 locks the shaft to the bearing
-
Fork joint 7 connects the pressure plate 16 flexible to the lever.
