New Holland T4020V Service Manual page 39

12 SECTION 35 - - HYDRAULIC SYSTEMS - - CHAPTER 6
Operation controls
Two potentiometers (1 and 2 fig. 9) are located on
the left--hand side of the dashboard, allowing the
upper limit and working position to be stabilised.
Switch (1, fig. 10), on the right--hand side, allows the
implement to be raised and lowered.
Adjustments
Upward travel adjustment knob
-- turn the knob (1, fig. 9) fully clockwise to totally
raise the lift arms;
-- turn the knob (1) fully counter--clockwise to
progressively reduce the upward stroke to zero.
Working position adjustment knob
-- turn the knob (2) fully clockwise to set the
minimum working depth,
-- turn the knob (2) counter--clockwise, to
progressively increase the working depth.
Up/Down switch
To raise and lower the implement, use button (1,
fig. 10), which has two positions:
-- A = Down position.
-- B = Up position.
84150905AB1 - - 02 - - 2012
FRONT LIFT
A B
9
10