Hydraulic Lift Rocker; Flow Control Valve; Hydraulic Manifold Block/Diverter Valve - New Holland TC21D Operator's Manual

HYDRAULIC LIFT ROCKER

The hydraulic lift rocker, 1, has two holes for
attaching the upper link. Attach the link using the
lower hole for light draft loads, such as mowers.
Attach the link to the top hole for heavier draft loads,
such as ground engaging equipment.

FLOW CONTROL VALVE

The flow control valve provides an adjustment to
regulate the flow of oil from the lift cylinder. This
allows the operator to slow or increase the rate of
drop of the lower links.
Turn the flow control valve "IN" (clockwise) to
decrease the rate of drop. Turn the valve "OUT"
(counterclockwise) to increase the rate of drop.
The flow control valve must be opened before the
hydraulic lift control will lower. If the valve is turned all
the way "IN" (clockwise), the lower links can be raised
to maximum height but cannot be lowered.
HYDRAULIC MANIFOLD BLOCK/
DIVERTER VALVE
The hydraulic manifold block/diverter valve is located
on the right-hand side of the tractor below the engine
oil dipstick. The manifold block supplies hydraulic oil
to optional remote valves to allow for operation of
implements such as front end loaders, blades,
backhoes, etc.
The diverter valve, 1, can be turned with a blade
screwdriver. In this position, 10 o'clock, hydraulic
fluid is directed to the H.P.L. valve and rear remotes
(optional). When a remote valve is plumbed to the
three ports pressure out, 2, pressure return, 3, and
sump or tank, 4, the diverter valve must be turned
clockwise to 1 o'clock position for hydraulic fluid to
flow to the remote valve and then to the H.P.L. valve
and rear remote valve (optional).
SECTION 2 - OPERATION
19983659
10020252
2-20
1
3
1
2
36
37
4
38