HARDI-EVRARD ALPHA PLUS 4100 - Towing Wheel Motors (DYNA+ Version); DYNA+ Wheel Motor Towing Preparation; Post-Towing Hydrostatic Adjustment

ALPHA PLUS HARDI NOVA
FF AA UU LL TT SS II NN OO PP EE RR AA TT II OO NN
CHAPTER
66-
7
33- AAccttiioonn oonn wwhheeeell mmoottoorrss ((WWiitthh DDYYNNAA++ vveerrssiioonn))
!
WWAARRNNIINNGG !!
AAfftteerr ttoowwiinngg ooppeerraattiioonn ddoonn’’tt ffoorrggeett
- to re-fit the original plug, to turn horizontally and lock the
handle of selector.
IIff nnoott tthhee hhyyddrraauulliicc mmoottoorrss ccoouulldd bbee ddaammaaggeedd
- ttoo sseett tthhee 22 vvaallvveess oonn tthhee hhyyddrroossttaattiicc ppuummpp
A manual hydraulic pump
((11))
and a selector valve
((22))
are placed on the right side to release the parking
brake (close to the fuel tank)
EVRARD
HARDI
Alpha
GROUPE
33
Before towing the machine you must :
- Stop the engine
- Turn the locking device
((33))
down and place the handle of selector ver-
tically
((44))
- Loosen the 2 plugs
((55))
mounted with restrictors (Dyna+ hydraulic
motor version)
- Fit special plugs equipped with chains
((66))
to keep the brake hydraulic
pressure
After this, fit the lever
((77))
and pump gently
until the parking brake is
completely released
The machine can be towed on a distance of
2255 ttoo 5500 mmeettrreess mmaaxxiimmuumm
at
a speed of
55 kkmm//hh mmaaxxiimmuumm))
.
44
the valves must be set at 420 bars, to do this :
- Place an hydraulic pressure gauge to HP jack
((660000 bbaarrss))
and release the parking brake.
- Activate the parking brake in the cab., start the engine and move the advance lever gently towards and
adjust the high pressure valve to obtain
442200 bbaarrss
maximum.
- move the advance lever to neutral position, screw the locknut.
- Push hydrostatic lever backward to adjust the second high pressure valve to obtain
442200 bbaarrss
maximum.
55
66
11
77
22