9
CONTROLS
16
Dirty oil is the enemy of a hydraulic system. The cleaner the oil, the more
efficient the hoist's operation and the longer it's life. So always use clean
hydraulic oil for topping up or changing the oil in the tank.
Use oil to specification ISO6734/4 HM32 for temperatures between
-20°C to +30°C. Typical suitable trade names are:
CASTROL
AWS32
ESSO
VG32
GULF
HYDRASIL 32
MOBIL
DTE24
SHELL
TELLUS 32
For other climates seek advice from your local distributor or direct from
Edbro.
Never put used oil in the tank.
To determine the oil level, remove the filler cap and check that the level
is within the max./min. marks as shown:
OIL
Correct oil level:
- not above green mark on dipstick
- not below red mark on dipstick
Edbro combined filler/breather
assembly
GREEN
RED
Max.
Level
Min.
Level
If the hoist judders in 'LOWER', or the tubes operate out of sequence
when lowering, there may be air in the system. For early cylinders
without a bleed screw ( approxiamately, serial numbers before
LG017000 / LH002100) bleed the system as follows:
•
loosen the pressure outlet hose from the pump a little
BLEEDING THE SYSTEM
PTO engaged
warning light
PTO switch
Fig. a. Combined PTO & tipper air controls
Fig. b. Separate tipper air control
Tipper lever with
spring return
safety feature
