2
3.12 At other special condition or place, the operator should be carefully to operate the
hand stacker.
4. MAINTENANCE
4.1 Hydraulic oil
Please check the oil level every six months. The oil can be hydraulic oil: ISO VG32, its
viscosity should be 32cSt at 40oC, total volume is about 2.0lt.
4.2 Daily check and maintenance
It is necessary to check the hand stacker daily. Special attention should be paid to the
wheels, the axles, as thread, rags, etc., it may block the wheels, the fork and the mast
should be checked, too. The forks should be unloaded and lowered in the lowest position
when the job is over.
4.3 Lubrication
Use motor oil or grease to lubricate all movable parts.
4.4 Remove the air
The air maybe enter the hydraulic pump during the transportation after the customer
buys it. It will cause the piston rod to fail to keep up the raised height. The air can be
removed in the following way: pull the control handle(FS107) up and move handle(E110)
up and down for several times.
5. TO ADJUST RELEASE DEVICE
On the draw-bar of this hand stacker, you can find the control handle (FS107) which can
be regulated in three positions: LOWER = to lower the forks; NEUTRAL = to move the
load, and LIFT = to raise the fork. These three positions have been pre-posited at the
factory. If however they have been changed, you can adjust according to following step:
4.1 If the forks elevate while pumping in the NEUTRAL position, turn the adjusting nut
(FS116) on the adjusting bolt (FS115) clockwise or turn the adjusting screw (FS223)
clockwise until pumping action does not raise the forks and the NEUTRAL position
functions properly.
4.2 If the forks descend while pumping in the NEUTRAL position, turn the nut (FS116) or
the screw (FS223) counter-clockwise until the forks do not lower.
4.3 If the forks do not descent when the control handle (FS107) is in the LOWER position,
turn the nut (FS116) or the screw (FS223) clockwise until raising the control handle (FS107)
lowers the forks. Then check the NEUTRAL position according to item 4.1 and 4.2 to be
sure the nut (FS116) and the screw (FS223) is in the proper position.
4.4 If the forks do not elevate while pumping in the LIFT position, turn the nut (FS116) or
the screw (FS223) counter-clockwise until the forks elevate while pumping in the LIFT
position. Then check the LOWER and NEUTRAL position according to item 4.1, 4.2 and
4.3.
