SUNWARD SWTH634 - Every 250 Hours Service

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5.4.3 EVERY 250 HOURS SERVICE
C1: Alternator belt tension
 The tension of the alternator fan belt must be adjusted, by
exercising a normal pressure with the thumb, the belt
flexure is about 0.394 in.
 If the tension is wrong, slacken screws 1 and 2 by 2 or 3
turns and turn the alternator unit so that the belt tension is
correct. Tighten screws 1 and 2 again .
 Check the condition of the belt (signs of wear or cracks)
and replace it if necessary.
C2: Check the oil level in the front and rear wheel
final drivers
 Set the truck on a horizontal surface and switch
off the engine.
 Set fill plug 1 (fig. C3) in a horizontal position.
 Remove the plug: the oil must reach the edge of
the hole.
 Add oil if necessary (see “LUBRICANTL”
chart).
 Repeat these operations for the each final drives.。
C3: Check the oil level in the front and rear wheel final drivers
 Set the truck on a horizontal surface and
switch off the engine.
 Set fill plug 1 in a horizontal position.
 Remove the plug: the oil must reach the edge of
the hole.
 Add oil if necessary (see “LUBRICANTL”
chart).
 Repeat these operations for the each final
drives.
C4: Check the oil in the 2 speed reduction gear on the front axle
 Place the truck on a horizontal surface with the engine
off and the oil in the reduction gear still hot.
 Remove the level and filler plug 1: the oil should
appear at the surface of the hole.
 Add oil if necessary (see “SUPPLY TABLE”)
 Replace and tighten the level and filling plug 1 .