HOLZMANN MASCHINEN RWH250Hybrid, User Manual

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TROUBLESHOOTING
HOLZMANN MASCHINEN GmbH www.holzmann-maschinen.at 23
RWH250Hybrid | RWH300 | RWH400
14.4 Disposal
H I N W E I S
Hydraulic oils are toxic and must not be released into the environment.
When changing, use suitable collecting containers with sufficient volume!
Follow the manufacturer's instructions and, if necessary, contact your
local authority for further information on proper disposal.
Observe the national waste disposal regulations. Never dispose of the product,
product components or equipment in residual waste. If necessary, contact your
local authorities for information on the disposal options available.
If you buy a new product or an equivalent device from your specialist dealer, he
is obliged in certain countries to dispose of your old product properly.
15 TROUBLESHOOTING
W A R N I N G
The following hazards may occur when working on the hydraulics:
 uncontrolled discharge of the hydraulic fluid
 accidental product movements
 flying away or bursting parts
 skin diseases
Work on the hydraulics must therefore only be carried out by competent persons with
the appropriate specialist knowledge.
If you are unable to carry out necessary repairs properly and/or do not have the required
training, always consult a specialist to get the problem fixed.
Problem Possible cause Solution
Product does not lift load
 Low hydraulic oil level
 Hydraulic valve is open
 Air in the hydraulic ram
 Check for oil leakage and top up if
required
 Close the hydraulic valve (turn
clockwise)
 Bleed the hydraulic ram
Product lowers when
under load
 Hydraulic valve not fully closed
 Air in the hydraulic ram
 Turn the hydraulic valve fully
clockwise
 Bleed the hydraulic ram
Pump feels spongy
 Low hydraulic oil level
 Air in the hydraulic ram
 Check for oil leakage and top up if
required
 Bleed the hydraulic ram
Lever raises or flies
back under load
 Air in the hydraulic ram  Bleed the hydraulic ram
Full lifting height is not
attained
 Low hydraulic oil level
 Air in the hydraulic ram
 Check for oil leakage and top up if
required
 Bleed the hydraulic ram
Product does not lower
completely
 Return spring may be faulty  Repair by a qualified technician