1. Install the engine brake housing gaskets. Make sure
that the oil supply slots align correctly with the oil supply
screws in the housings.
2. Before installing the brake housings, back out the
slave adjusting screws (located above the slave piston)
so that the slave pistons are fully retracted (up).
3. Place the three engine brake housings on the rocker
housings. Check rocker levers to be sure there is no
interference.
Figure 3-2
4. Install the six mounting screws into each engine brake
housing.
Figure 3-3
5. Tighten the capscrews to 35 lbft (48 N*m) in
sequence as shown in Figure 3-3 then re-torque to 70lbft
(95N*m).
Slave Piston Adjusting Screw
Refer to the Application Chart shown in Figure 3-4 to
identify which screw should be used.
The orange adjusting screws are preinstalled in the brake
housing.
2
APPLICATION CHART
ADJUSTING SCREW
CPL NO. ENGINE MODEL PART NO. COLOR
2025 N14 435 ESP Plus TB900032 Orange
2026 N14 370 ESP Plus TB900032 Orange
2027 N14 330 ESP Plus TB900032 Orange
2389 N14 330 ESP Plus TB900039 Purple
2390 N14 370 ESP Plus TB900032 Orange
2391 N14 435 ESP Plus TB900032 Orange
2398 N14 370/460E Plus TB900032 Orange
2590 N14 330 ESP Plus TB900039 Purple
2591 N14 370 ESP Plus TB900032 Orange
2592 N14 435 ESP Plus TB900032 Orange
Figure 3-4
Slave Piston Adjustment
Adjustment of the slave piston adjusting screw is critical.
Proper adjustment is necessary in order to provide peak
braking efficiency without over stressing the engine.
Slave piston adjusting screw adjustment must be made
with the engine stopped and engine temperature
stabilized below 140
o
F (60
o
C).
A) Dial Indicator Method
Figure 3-5
1. Set engine brake valve lash using the adjusting screw
located above each slave piston. The engine crankshaft
must be rotated to allow the exhaust valve to be fully closed
prior to making adjustment on each cylinder.
2. Install a dial indicator over the slave piston adjusting
screw for the cylinder to be adjusted. Turn the screw down
until the slave piston contacts the crosshead. Zero the dial
indicator on this position. Back out the adjusting screw until
the dial shows 0.023” (0.58mm).
3. Tighten the adjusting screw lock nut to 25 lbft (35 N*m)
torque. Rotate the crankshaft, adjusting each adjusting
screw in firing order sequence.
(29 Seiten)
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