![background image](http://html1.mh-extra.com/html/gardner-denver/mh3-hydrapak/mh3-hydrapak_operation-maintenance-and-installation-manual_3583558006.webp)
onditions.
TRAILER MOUNTED
HYDRAPAK
To hydraulic
pump inlet
Detail 1 is the worst possible suction c ondition.
This mounting may c aus e s evere hydraulic pump c avitation which will
reduc e the hydraulic pump life.
The hydraulic system as shown in this mounting c onfiguration will
operate very poorly or not at all.
DETAIL1
To hydraulic
pump inlet
Detail 2 is a possible choice for hydraulic mounting.
The straight line run on the suction line is acceptable.
Caution must be taken with the routing of the suction line to insure that
there are no rises in the suction line that are above the Hydrapak oil
reservior.
Note: pressure drop calculations must be performed on the specific
system
and corresponding tractor unit to insure acceptable suction c
Consult factory for application assistance.
DETAIL 2
To hydraulic
pump inlet
DETAIL 3
Detail 3 is the best possible mounting configuration.
The mounting of the Hydrapak as shown will help to improve the suction
conditions.
This type of Hydrapak mounting will provide good system performance
provided that there are no rises in the suction line above the Hydrapak
reservior.
Note: pressure drop calculations must be performed on the specific system
and corresponding tractor unit to insure acceptable suction conditions.
Consult factory for application assistance.
SUCTION HOSE SIZING CHART:
0 to 15 gpm hyd. flow use 1-1/4
” suction line on trailer and tractor.
15 to 23 gpm hyd. flow use 1-1/2
” suction line on trailer and tractor.
23 to 40 gpm hyd. flow use 2
” suction line on trailer and tractor.
This hose sizing chart is based on mounting the Hydrapak as shown in
“detail 3”and having an over-all suction line length
of 15 feet. For suction lines that have an over-all length that is more than 15 feet Consult the factory for assistance.
The routing of the suction line must be done to avoid excessive pressure drop. Elbows ,reducers,and line rises above the
bottom of the Hydrapak reservior will cause excessive pressure drop in the suction line.
The maximum recommended vacuum at the hydraulic pump inlet is 5
” Hg for gear pumps and 2”Hg for piston
pumps.Consult the factory for assistance
Summary of Contents for MH3 HYDRAPAK
Page 2: ......