What is the torque spec for the pump installation bolt (M8x1.25)?

24.5 to 29.4 N·m (18.1 to 21.7 lbft), the same range as the pump installation nut (M8x1.25).

How tight should the oil filter cartridge be installed?

Tighten to 15 to 20 N·m (11.07 to 14.76 lbft), after cleaning the mounting side and applying oil to the cartridge packing for lubrication.

What is the maximum permissible gap where the oil pressure pipe connects?

The permissible value of the gap at the part where the oil pressure pipe is connected is 2 mm or less.

What is the torque for the DIGGING INTO NUT (φ12)?

Temporary tightening: 44~59 N·m (32.47 to 43.54 lbft); well set (final): 49~69 N·m (36.16 to 50.92 lbft).

What precautions are given for assembling the hydraulic line?

Apply oil to the O-ring, prevent anything except oil from getting into the hydraulic line, and confirm there is no oil leakage after assembly. The pipe slit direction must face upward.

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Hydraulic Line Layout Schematic - Piping Routing, Torque Specs & Assembly Notes

Manual page hydraulic line routing schematic with a torque tightening table

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Service manual page showing a hydraulic line routing schematic with component callouts and a torque tightening specification table.

AI caption March 2015 · Photo 4 of 8

This document is a hydraulic line layout/assembly schematic showing the routing and installation of power-steering/hydraulic piping between a hydraulic housing, transmission housing, hydraulic pump, steering unit, block assembly, and radiator bracket area. Labeled components include Pressure Pipe A and B, Return Pipe A, Hose R, Hose C, eye bolts, seal washers, adapters, elbows, joints, unions, clamps, wire bands, O-rings, and a cushion. Assembly notes instruct applying oil to O-rings, keeping foreign material out of the hydraulic line, checking for oil leaks after assembly, installing the filter oil cartridge (clean mounting surface, oil the cartridge packing, tighten to 15–20 N·m / 11.07–14.76 lbft), and limiting the gap at the oil pressure pipe connection to 2 mm or less. A tightening-torque table keyed to asterisked part signs (*1 through *12) covers pump installation bolts/nuts (M8x1.25, 24.5–29.4 N·m), pipe installation bolts, union bolts (M16x1.5), unions and adapters (G3/8, G1/2, G1/4), 90° elbows, clamps, hose connections, and a φ12 'digging into' nut with temporary and final torque values. Two reference part numbers appear: 1044 1202 00 (holder bearing, #120-) and 1957 1203 00 (housing diff, #120-). A second isometric view shows the assembled hose bundle with the oil filter cartridge.

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Frequently asked questions

What is the torque spec for the pump installation bolt (M8x1.25)?: 24.5 to 29.4 N·m (18.1 to 21.7 lbft), the same range as the pump installation nut (M8x1.25).
How tight should the oil filter cartridge be installed?: Tighten to 15 to 20 N·m (11.07 to 14.76 lbft), after cleaning the mounting side and applying oil to the cartridge packing for lubrication.
What is the maximum permissible gap where the oil pressure pipe connects?: The permissible value of the gap at the part where the oil pressure pipe is connected is 2 mm or less.
What is the torque for the DIGGING INTO NUT (φ12)?: Temporary tightening: 44~59 N·m (32.47 to 43.54 lbft); well set (final): 49~69 N·m (36.16 to 50.92 lbft).
What precautions are given for assembling the hydraulic line?: Apply oil to the O-ring, prevent anything except oil from getting into the hydraulic line, and confirm there is no oil leakage after assembly. The pipe slit direction must face upward.