Publicité
8. TROUBLE SHOOTING
IF THE TRUCK HAS MALFUNCTIONS FOLLOW THE INSTRUCTIONS, MENTIONED UNDER CHAPTER 7.
TABLE 2: TROUBLE SHOOTING
No.
Symptom
1
Forks
don't raise, don't
raise fully, or
raise slowly
2
Forks
don't lower or
don't lower fully
3
Forks lower
without putting
the control lever
in the "lower"
position
4
Oil leakage
9. HYDRAULIC CIRCUIT
0519_Manual PalletTruck1_A5.indd 15
0519_Manual PalletTruck1_A5.indd 15
Possible Causes
a) Low hydraulic fluid level or impurities in oil.
b) Control lever is out of adjustment.
c) Load is too heavy. Overload release valve is
being activated.
d) Temperature is too low and the hydraulic oil
has become too thick.
e) Air in the hydraulic oil
a) Obstacle located under truck, in fork
mechanism, etc.
b) Control lever is out of adjustment.
c) Fork was left in a raised position for an
extended time causing exposed piston rod to
rust.
d) The piston rod or pump is deformed due to
over-loading or uneven loading.
a) Obstacle located under truck, in fork
mechanism, etc.
b) Control lever is out of adjustment.
c) Fork was left in a raised position for an
extended time causing exposed piston rod to
rust.
a) Worn or damaged seals
b) Other cracked or worn parts
Figure 11: Load conditions
www.kramp.com
www.kramp.com
Corrective action
a) Add approved hydraulic fluid or change
oil as noted in chapter 7.
b) Follow the procedure for adjusting the
control lever in chapter 4.
c) Reduce load.
d) Move truck to a warmer location.
e) Deaerate the hydraulic pump.
a) (see chapter 7)
a) Use caution removing the obstacle.
b) Follow the procedure for adjusting the
a) control lever in chapter 4
c) Keep fork in the lowest position when
a) not in use and keep piston rod well
a) lubricated
d) Replace the piston rod or pump
a) Drain and replace hydraulic fluid with
approved fluid as noted in chapter 7.
b) Inspect and replace components as
needed.
c) Follow the procedure for adjusting the
control lever in chapter 4
a) Replace seals
b) Replace damaged parts
15
GB
13/06/2023 10:29
13/06/2023 10:29
Publicité
