40
Fig. 3-5 Fill lubricating grease and pre-load adjustment
When changing the tires, the hub bolts should be coated with sealant after a new tire
is mounted to ensure the tightening torque of the hub bolts is 160N.m for1～3.5t forklifts.
3.5.2 Maintenance and service of steering system
(1) The steering king pin needs to be checked every 40 hours and grease be
replenished to the bent neck type grease fittings of king pin every 300 hours, piston rod
and link rod of steering oil cylinder, rotation connection parts of right and left knuckle
arm need to be checked every 40 hours and lubrication grease replenished every 300
hours.
(2) Change the grease of the bearing of steering hub every 1200 hours.
(3) Pay attention to the working condition of steering system during routine
maintenance. The manual operation force on the steering wheel should be 10-25N during
steering and the difference of right and left acting force is not more than 10N. When the
forklift runs in straight line at maximum speed, obvious S-shaped phenomenon is not
allowed. Make analysis and remedies by contrasting Table 3-2 “Fault Analysis Table for
Steering System”.
(4) Apply special lubricating grease to the conductive plate which the steering wheel
horn switch connecting point acts on every 1200h.
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