Mast Maintenance
28
PCMS Operations, Safety & Maintenance V3.0
Ver-Mac 2018
Maintenance Procedure
1.
Check the hydraulic fluid in the reservoir is approximately ¾ full
2.
Add Dexron II ATF hydraulic fluid as necessary to maintain level
3.
Replace the cap on the reservoir tightly to prevent loss or contamination of the
hydraulic fluid
9.2.2
Lowering the Mast with Hydraulic Bypass Valve
WARNING
Turning the hydraulic bypass valve too quickly may cause the
sudden and rapid descent of the signboard.
To avoid possible injury, make sure you are well clear and out of
the way.
If the hydraulic system fails to function, gradually turn the hydraulic bypass valve
counterclockwise
to release the pressure so the fluid flows back into the
reservoir and lowers the mast.
Once the mast is down, retighten the hydraulic bypass valve.
NOTE
This procedure only lowers the mast. It does not enable you to raise the mast.
9.2.3
Raising the Mast with Optional Manual Hand Pump
1. Open battery box and check that the safety release valve is tight.
2. Remove the handle from its holder in the battery box and insert it into the
pump.
3. Commence pumping and continue until mast rises to full height.
9.3
Reversible Hand Winch System for Mast
NOTE
This component is an option on Ver-Mac PCMS. Please check that your PCMS
has this component
before
proceeding.
Manual hand winches require your physical strength to crank and raise and lower the
mast. When working with a manual winch stay alert, watch what you are doing and use
common sense.
Proper footing and balance enables better control of the winch in unexpected
situations.
CAUTION
Do not over reach. Maintain proper footing and balance all the
time.
Do not stand on trailer to raise or lower mast.
Loose clothing and long hair can be caught in moving parts.
