RAV KT100 Manual De Servicio página 38

38
8 Fault Finding
Danger
Work on the hydraulic compo-
nents should only be carried out
by a qualified tradesman
Observe the safety instructions
Fig. 11:
Fig. 12:
8.1 Machine lowers on its own
Adjust the lowering valve by following
this procedure
• Loosen the M8 grub screw
• Leave the lowering pedal in its nor-mal
position
• Using a screwdriver slightly adjust the
valve spindle:
- Anticlockwise, to raise the lower-ing
speed.
- Clockwise, to reduce the lowering
speed and to ensure that the pump
holds the load in position.
• Lightly tighten the grub screw after eve-
ry adjustment.
• When adjustment is correct fully tighten
the grub screw.
KT100_KT100XT_(0970M00100)_R1_UN_00
8.2 Machine will not raise to ma-
• Check oil level (see 7.4)
8.3 Machine does not raise with
• Depress the lowering pedal with the
Breather bung
M8 grub screw
8.4 Pump produces no pressure
Lower. spin-dle
• Remove the breather bung.
Lowering pedal
• Lay a clean cloth (twice folded) over
Foot- pedal
• Using a compressed air pistol pres-
Breather bung
8.5 Breakdown / Maintenance of
M8 grub screw
The valves used normally require no
Lower. spind-le
maintenance. By malfunction of the pump
Lowering pedal
observe positions 1-4 in the "fault finding".
Foot- pedal
Should it be found that the positions 1-4
in "fault finding" produce no cure return
the pump for repair.
ximum height
the first pump stroke
right hand and at the same time quickly
pump the foot pedal with the left hand.
the opening.
surise the tank and at the same time
quickly pump the foot pedal.
the valves