15-51
4) Remove the oil tank cap. Check that Automatic
Transmission Fluid (ATF) is at the upper limit of the filler
port (P. 15-47).
5) Push the “DN” side of the power tilt switch to compress
each rod fully.
6) Push the “UP” side of the power tilt switch to extend each
rod fully again. Read the pressure gauge to measure the
lower chamber blow pressure.
b. UPPER CHAMBER BLOW PRESSURE
1) After measuring the lower chamber blow pressure, remove
the special tool (oil pressure gauge joint B) and the
pressure gauge from the pump assembly with each rod full
extended.
• Note that Automatic Transmission Fluid (ATF) will spurt
out when the special tool is removed without the rods
fully extended. Move each rod to the fully extended
position before removing the special tool.
• A small amount of the Automatic Transmission Fluid
(ATF) will flow out when the special tool (oil pressure
gauge joint B) is removed. Attach the special tool (oil
pressure gauge joint A) quickly.
2) Attach the special tool (oil pressure gauge joint A) for
measurement of upper chamber blow pressure to the
manual valve installation section as shown.
Tighten the special tool to the specified torque.
TOOL:
Oil pressure gauge joint A
07SPJ-ZW10100
TORQUE: 9 N.m (0.9 kgf.m, 6.5 lbf.ft)
3) Attach a commercially available pressure gauge [P/T 1/4]
which measures 14,710 kPa (150 kgf/cm
2
, 2,133 psi) or
above to the special tool (oil pressure gauge joint B).
Lower chamber
8,826 – 11,768 kPa (90 – 120 kgf/cm
2
,
blow pressure
1,280 – 1,707 psi)
7) If the blow pressure is lower than the specified pressure,
check each part of the power trim/tilt assembly for oil
leakage (P. 15-54).
8) If there is no oil leakage but the pressure dropped sharp
below the specification, check the power tilt motor
assembly for the damaged oil seal. Disassemble the power
tilt motor assembly (P. 15-53) and inspect (P. 15-55), and
measure the lower chamber blow pressure again (P. 15-50).
9) Measure the upper chamber blow pressure.
[2]
OIL PRESSURE GAUGE
JOINT A (Upper chamber)
07SPJ-ZW10100
[1]
PRESSURE GAUGE
(Commercially
available)
[1] POWER TILT
SWITCH