Hawk Industries Spinner Manual 550 HYDRAULIC Serial Numbers 206 to 591 - Manual (Page 42)

42
Symptom Remedy
Trouble Shooting Hydraulic Spinmaster
Troubleshooting
Continued on next page.
The Main Relief Valve makes noise
and/or the Hydraulic Fluid Heats
Up. (Continued)
The Spimaster Runs Slower than
Normal.
noise and the hydraulic fluid will heat up. To adjust
the Spinmaster Relief, See Hydraulic Adjustments
pg.12.
 Hydraulic fluid will heat up and cause severe dam-
age to the hydraulic power unit and the Spinmaster
if a closed center plug is used with an open center
hydraulic power unit. Make sure that the Spinmas-
ter main valve is configured with a open centered
plug (the Spinmaster comes standard with the open
center plug unless otherwise specified) for run-
ning a constant volume hydraulic power unit. See
Hydraulic Adjustments pg.12.
 Check to see if the Spinmaster grip cylinder piston
seals are leaking. The cylinders will be hotter than
the hydraulic motor if they are leaking internally
and the Spinmaster would slow down. To repair
the grip cylinders, See Drawings pg.56,58.
 The Spinmaster motor could be leaking internally
causing the Spinmaster to slow down and the mo-
tor would also run hotter than normal. To repair
the motor see Drawings pg.62.
 Check that the pressure and tank hydraulic line quick
disconnects are properly and securely connected.
See Power Hook-Up pg. 11.
 Make sure the power unit is providing the proper
flow. See Power Hook-Up pg. 11.
 If there is a pressure filter on the hydraulic power
unit, the filter element may be clogged. Change
the filter element.
 Check to see if the Spinmaster grip cylinder piston
seals are leaking. The cylinders will be hotter than
the hydraulic motor if they are leaking internally
and the Spinmaster would slow down. To repair
the grip cylinders, See Drawings pg.56,58.
 The Spinmaster motor could be leaking internally
causing the Spinmaster to slow down and the mo-
tor would also run hotter than normal. To repair
the motor see Drawings pg.62.