Weifang 495 - Operation and Maintenance of the Clutch

.2·. Operation and Maintenance of The Clutch
l) .. Theclutch shouldbe.engaged only·whenthe engines:peed
IS not higher than 1500 rpm. The act of engagement should be
moderate, otherwise the engine may emit dense smoke or even stall
because of being loaded suddenly. The act of disengagement should
be pr~mpt without hesitation· so as to prevent the clutch disc from
premature damage because of sliding each other.
2). During the engine operating, it is not permitted to disen-
gage the clutch for more thaf?15 minutes in order to prevent the
release bearing frompremature~amage. Therefore, the engine
should be disconn.ected with the driven equipment an'd shift the
clutch to the "on" position whe:n the engine is being warmed up in
winter.
3)Pay close attention to prevent the engaged surfaces of the
clutdl disc, flywheel and pressure plate from grease or dirt when
the clutch is dismantled or installed. When install the clutch on to
. the engine, the centering mandrel (a tool provided with the
engine) should be used to make the center line of the clutch disc
spline hole coincide with the center line of the flywheel bearing as
shown in Fig. 35. Then, fix the support plate onto the flywheel.
After. the. clutch disc has been fastened, take ·~ut the centering
mandrel·and install the .clutch housing.
4). Ch~ck and maintenance of the clutch
( 1) Fill the grease nipple on the clutch housing with sodium
base grea~_e. through the hole on the pulley every 150 operating
hours. Do'n't use t~e c·ommoncalcium b,ase g.rease.
(2)Fill grease into the two grease nipples on the release fork
s.haft every 250 operating hours (Second order maintenance).
(3) The clearance-" A '.' between the release lever and the. r'e-
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