Grizzly G0503 - Manual (Page 39)

Model G0503 (Mfg. Since 12/08) -37-
figure 48. hydraulic reservoir components.
in order for the hydraulic system to operate the
conveyor properly and at the correct tempera-
ture, the hydraulic fluid level in the tank should
be
2 ⁄
3
full between the fill lines on the fluid sight
window, which is located on the front of the tank
(see
figure 48).
check the hydraulic fluid level daily.
to add hydraulic fluid, wipe the dust and dirt from
the breather cap shown in
figure 48 and remove
the cap. Fill the tank to the full line with an iso
Vg 46 hydraulic fluid. if this machine is used in
extreme cold conditions use iso Vg 32 hydraulic
fluid; use iso Vg 68 hydraulic fluid for extreme
hot environments.
the hydraulic system minor service consists of
changing the filter, cleaning the breather cap and
filler screen, and inspecting the hydraulic fluid for
signs of thermal breakdown, dust contamination,
and water contamination.
perform a “Minor Service” every 960 hours,
or when the filter pressure gauge (see figure
48) nears the red.
Inspect and clean the breather cap and filler
screen every 40 hours of regular use.
Visually inspect both the breather cap and the
plastic screen that sits in the tank opening. if
there is visual contamination, clean both items
with solvent and compressed air. allow them to
completely dry before installing back in the tank.
do not pour hydraulic fluid from the center of
the screen back into the tank.
The hydraulic system on this machine cre-
ates very high pressure and the hydraulic
fluid gets hot. Always stop the resaw, make
sure the pressure gauge reads 0 pSI, and
make sure the fluid cools down before ser-
vicing the hydraulic system.
Hydraulic System
Minor Service
Hydraulic fluid
Schedule
Fluid sight
window
Breather
Cap
To inspect the hydraulic fluid:
1. look at the color of the hydraulic fluid in the
sight window.
— if the fluid is milky in appearance, then the
hydraulic fluid is contaminated with water.
— if the fluid is dark brown or opaque, then
the hydraulic fluid is severely contaminated
or thermal breakdown has occurred.
2. smell the hydraulic fluid (remove breather
cap).
— if the fluid smells rancid or burnt, then the
hydraulic fluid has overheated and ther-
mal breakdown has most likely occurred.
Correct the component that is causing
thermal breakdown (see Troubleshooting
on
page 68).
3. determine what service is needed.
— if the fluid is transparent and does not smell
burnt or rancid, perform a minor service.
— if the fluid is opaque, smells rancid or burnt,
fix the source of contamination or the com-
ponent causing thermal breakdown, then
perform a major service.
Filter pressure
gauge