record highest pressure displayed each time valve is closed. If
readings are as specified and within 50 psi (4 kg/cm
) of each other,
go to step 6). See PRESSURE RELIEF SPECIFICATIONS table. If readings
are as specified but not within 50 psi (4 kg/cm
) of each other, go to
next step. If readings are not as specified but within 50 psi (4
kg/cm
) of each other, go to step 5).
PRESSURE RELIEF SPECIFICATIONS
Application psi ( kg/cm )
"C" & "H" Bodies ..................... More Than 1350 (95)
"E" Body ............................ More Than 1500 (105)
"F" Body ............................. More Than 1200 (84)
"G" & "K" Bodies .................... More Than 1700 (120)
"J" Body
2.2 L .............................. More Than 1200 (84)
2.4 L .............................. More Than 1300 (91)
"N" Body ............................. More Than 1400 (98)
"W" Body ............................. More Than 1300 (91)
"Y" Body ............................. More Than 1250 (89)
4) Check for sticking flow control valve. Remove valve, but
DO NOT disassemble. Clean valve using crocus cloth or fine hone. Flush
system, if dirty. Install valve and retest system. If readings are now
as specified, go to step 6). If reading are not as specified, go to
next step.
5) Replace flow control valve and retest system. If pressure
readings are still low, check pump rotor and vanes for wear. Replace
complete pump assembly if worn and flush power steering system. If
pressure readings are as specified, go to step 7).
6) With valve open, turn steering wheel from stop to stop.
Record highest pressure with wheels at both stops. If highest pressure
is not equal to highest pressure recorded in step 3), rack and pinion
assembly is leaking internally. Repair or replace assembly. If
pressures are equal, no problem exists. Go to next step.
7) Turn engine off. Remove tester. Reconnect high pressure
hose to pump. Check fluid level. Bleed hydraulic system. See
HYDRAULIC SYSTEM BLEEDING under LUBRICATION.
FLOW RATE TEST
1) Connect Power Steering Analyzer (J-44721) into system.
Fully open analyzer valve. Run engine until fluid reaches normal
operating temperature. Check fluid level. Add fluid if necessary.
Record pressure and flow rate.
2) Close valve partially until pressure is 700 psi (49
kg/cm
), and then record flow rate. Subtract flow rate from that
measured in step 1). If flow rate drops more than one gallon (3.8L)
per minute, replace ring, rotor and vanes in pump. If flow rate does
not drop one gallon (3.8L) per minute, go to next step.
3) Increase engine speed to 1500 RPM, and record flow rate.
Subtract flow rate from that measured in step 1). If difference
between flow rates is more than one gallon (3.8L) per minute, remove
and clean flow control valve. If not, go to next step.
4) Turn steering wheel from stop to stop. Flow rate should be
less than one gallon (3.8L) per minute at each stop. If flow rate is
not as specified, check rack and pinion assembly for leakage.
5) Turn engine off. Remove tester. Reconnect high pressure
hose to pump. Check fluid level. Bleed hydraulic system. See
HYDRAULIC SYSTEM BLEEDING under LUBRICATION.
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Kommentare zu diesen Handbüchern