Air Spring Adjustment - Landoll 5530 Operator's Manual

HEAVY
SETTING
NORMAL
SETTING

air spring adjustment

4-21 AIR SPRING ADJUSTMENT
4-21.1 The air pressure delivered to the air
springs is the same for all openers. To be
able to increase the down pressure for spe-
cific row units such as in wheel track loca-
tions, the air spring has two mounting posi-
tions. The normal position is forward, with a
heavier setting by sliding the air spring to the
rear. The heavier setting will increase the
down pressure by approximately ten percent.
CAUTION
RELIEVE SYSTEM AIR PRESSURE BE-
FORE ATTEMPTING TO ADJUST OR
SERVICE ANY AIR SPRING COMPO-
NENT. MAKE SURE ALL COMPO-
NENTS ARE IN PLACE AND SECURE
BEFORE CHARGING THE SYSTEM.
4-28
3/4-16 HEX JAM NUT
AIR SPRING
Figure 4-29 Air Spring Adjustment
4-21.2
MAKE SURE THE AIR SPRING HAS FULLY
REACHED THE ENDS OF THE TOP AND BOT-
TOM SLOTS BEFORE RETIGHTENING. IF THE
AIR SPRING IS NOT IN THE ENDS OF THE
SLOT, IT WILL BE OUT OF ALIGNMENT AND
CAN RUB INTERNALLY WEARING A HOLE.
ALSO, BE SURE THE AIR SPRING IS NOT
TWISTED WHEN RETIGHTENING THE FASTEN-
ERS.
4-21.3
To adjust the air spring location, first re-
lieve the system air pressure. Loosen, but do
not remove the 3/4-16 hex jam nut at the top
of the air spring and the 1/2-13 x 1 hex head
cap screw below the air spring and air spring
pivot. Slide the air spring forward or rearward
to the desired location (See Figure 4-29).
IMPORTANT
Retighten the top jam nut and bottom
hex head cap screw to secure the air spring.
Recharge the system with air to normal
working pressure.
AIR
SPRING
PIVOT
1/2-13 X 1
HEX HEAD
CAP SCREW
AIR OPENER
ASSEMBLY