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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 1: ...OPERATION MAINTENANCE and INSTALLATION MANUAL 40 G P M 3500 P S I MH3 HYDRAPAK 999042002 VERSION 03 February 3 2015...

Page 2: ......

Page 3: ...oil Use a paint filter as a strainer while filling 3 After Hydrapak is filled check for hydraulic system leaks 4 Slowly raise the clutch while the engine is running to engage the P T O and pump Stop...

Page 4: ...sized piping can then exit the Y and lead into the pump inlet sections Always make sure the Y pipe is supported and consideration is given to the remaining points MOUNTING HYDRAPAK Behind the cab is...

Page 5: ...chart High pressure from hydraulic pump to Hydrapak Note 4 of space shown above must be maintained between radiator and any obstructions Radiator must be shielded from rocks and road debris Note for s...

Page 6: ...ns 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 perform...

Page 7: ...5 HYDRAULIC FILTER 306000206 1 SPIN ON STYLE 26 CAP SCREW 75A10Z 4 5 16 18 X 1 GR5 PLATED 27 NYLOCK NUT 236105400 4 5 16 18 PLATED 28 LOCK WASHER 405757 4 5 16 GR 5 S S 29 LOCK WSHER 240004400 3 1 4 G...

Page 8: ...00psiw ADP 703000210 KIT PRESSURE CAP OPTION MH SERIES 717000200 HEATER KIT HYDRAPAK TANK 12 vdc MOBILE 717001200 HEATER KIT HYDRAPAK TANK 12 vac STATIC 309072200 HYD FLLR CAP THREADED NON VENTED 3030...

Page 9: ...47 6 22 1 5 31 4 45 7 23 17 18 26 8 27 4 2 41 37 3 29 2 44 2 25 6 43 3 29 3 45 7 9 7 24 10 11 42 19 28 8 26 REF 8 20 36 21...

Page 10: ...y shall apply to all parts sold to Buyer TRAINING AND SUPERVISION The buyer hereby assumes the affirmative duty to properly educate instruct and supervise its employees and all others except employees...

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