Mitsubishi Fuso CANTER FE85DE6SLGP, Руководство по ремонту

Страница: 115 / 336

11
11-77
Inspection: Balance shaft bend
• Place supports under the No. 1 and No. 3 journals of the bal-
ance shaft and measure the bend of the balance shaft at the No.
2 journal.
• The amount of balance shaft bend is obtained by giving the bal-
ance shaft one turn and dividing the dial gauge reading by two.
• If the measurement exceeds the specified limit, replace the bal-
ance shaft.
Installation procedure
Installation: Balance shafts
• Install all the indicated parts on each balance shaft with their
ends facing in the illustrated directions.
• Tighten the nut for the balance shaft RH by turning it clockwise,
and the nut for the balance shaft LH by turning it counterclock-
wise.
• Install the assembled balancer shafts, RH and LH, to the crank-
case in the following ways. Procedures for RH and LH shafts are
different.
• Balancer shaft RH: No special positioning or the like is re-
quired. Just install the shaft to the crankcase. (Adjustment of
balancer shaft timing will be performed when installing the oil
pump.)
• Balancer shaft LH: The gear of the balancer shaft LH is en-
gaged with the vacuum pump gear after installing the front
case. At that moment, the balancer shaft cannot be rotated
and therefore the shaft timing cannot be adjusted. For this
reason, the position of the balancer shaft LH must be fixed
when installing the shaft. Insert the balancer shaft LH into the
crankcase and then do as follows:
• Remove the plug on the upper crankcase.
• Prepare a Philips screwdriver with 4.5 mm or smaller shaft di-
ameter. Mark the point 40 mm from the tip of the shaft.
• Insert the screwdriver into the plug hole until it lightly contacts
the balancer shaft.
CAUTION
• Do not apply heavy force on the screwdriver. Doing so may
damage the No. 1 journal of the balancer shaft LH.