Snorkel PAM26-sn000001+ - Manual (Page 26)

December 2008 Instruction Manual
Page20
7.4 Maintenance
7.4.1 Adjusting the maximum rising force
The proper pressure of hydraulic system has been preset at the factory, however, the
regulating value has been changed because of using the product for a long term.
Notes:
1) When you find the rising force not reach the rated value, open the hydraulic unit
1 - regulating valve
2 - throttle valve
3 - oil drainage port for
emergency
4 - terminal
5 - oil drain plug
6 - oil filler cap
cover. Please refer to the above sketch, turn the regulating valve 1 of the hydraulic
control device clockwise till the rising rated value.
2) If necessary, a pressure gauge (supplied as an optional attachment) could be
connected to the emergency lowering valve block for hydraulic system pressure
checking.
7.4.2 Adjusting the speed of falling The speed of falling of the platform can also be
adjusted.
Note: Please refer to above sketch. The speed is reduced when you turn the adjusting
screw 2 of ―throttle valve ”clockwise, otherwise, the speed is increased.
7.4.3 Fluid level checking A separate fluid level indicator is provided as an attachment
(optional) for both the permissible maximum fluid level and the necessary minimum
level when the machine is in transports.
7.4.4 Replacing the hydraulic oil The hydraulic oil of the equipment should be replaced
once after the equipment has been used for half a year to clear off the pollution caused by
wearing of the system in the first term. Determine the term of the replacement
according to the polluted circumstances of the hydraulic oil later (suggest replacing the
hydraulic oil once every one and half one years).
Note:
1) Selecting of the hydraulic oil depends directly on influence of the temperature for
using. For non-paramo region, the common hydraulic oil of kinematic viscosity (40)
46mm 2 /s (the nominal value) is recommended for use.
2) When replacing the hydraulic oil, first place a basin for containing waste oil under
the oil box. Open the oil filler cap 6 at the top of the oil box and then remove the oil
drain plug 5 at the bottom. After draining off the waste oil, fill a little clean hydraulic
oil into the oil box through the oil filler hole and wash it. Tighten the drain plug 5 after
all the oil has been drained. Then fill up with clean hydraulic oil and allow for a slight
overflow to displace any air.
7.4.5 Regulating the transmission chain The direct result of wearing the transmission