np134 mechanical reference-1.1e.pdf.pdf - 第96页

3.8 Replacing the PFU Photo Link Board Fuse Point A fuse is used to prevent the power lines between the PFU and the Power Feeders from shorting. This fuse should be replaced in the following manner. Fuse types: 045303.5M…

5. Remove the belt cover from the vacuum pump, then detach the vacuum pump

from the assembly.

6. Detach the pulley with fan, filter, extension pipe and elbow joint from the vacuum

pump. Replace the vacuum pump, and reattach the parts to the new pump

(in reverse order).

7. Attach the vacuum pumps to the base, then attach belts 1 and 2. Belt 2 must be

attached on the inside (closest to the motor).

8. Adjust the tension of belt 1 and 2 so that, with 0.97 kgf applied at the center of the

belt, the amount of play is 2.7 mm and 3.7 mm respectively.

9. Reattach the belt cover, then secure the pump assembly to the machine using the

four bolts.

10. Reconnect the vacuum pump wiring to the terminal block.

Note: Ensure the wires R (red), S (white) and T (black) are connected correctly to the

terminal block.

Belt 1

Belt 2

Pulley with fan

Vacuum pump

Elbow joint

Extension pipe

Filter

Lock bolt plates

Elbow joint

Extension pipe

Filter

Pulley with fan

Vacuum pump

Belt cover

NP1ML076-1

Part 3 Chapter 3 Replacing Consumable Parts

Edition 1.0 3-3-11 NP-134E/134ME Mechanical

3.8 Replacing the PFU Photo Link Board Fuse

Point

A fuse is used to prevent the power lines between the PFU and the Power Feeders from

shorting. This fuse should be replaced in the following manner.

Fuse types: 045303.5MR (Littelfuse)

CCF1N3.15 (KOA)

Note: The fuses can only be replaced on the newer type of PFUs, which can be identified by the

shape of the lower cover on the Power Feeder connection terminal. This is illustrated in the

figure below.

Procedure

1. Remove the lower cover from the Power Feeder connection terminal.

Note: The photolink board is attached to the cover.

2. Replace the fuse using a pair of tweezers or needle nose pliers. Extract the fuse

carefully to avoid damaging the surrounding holder.

Fuse

Connection terminal

NP1MR069

Lower cover

NP1MR068

New type PFU

Old type PFU

Fuse replacement possible

Fuse replacement

not possible

Part 3 Chapter 3 Replacing Consumable Parts

Edition 1.0 3-3-12 NP-134E/134ME Mechanical

3. Insert the tip of the pin into the hole in the board and then secure the unit in

position.

Photolink board

Tip of pin

NP1MR070

Part 3 Chapter 3 Replacing Consumable Parts

Edition 1.0 3-3-13 NP-134E/134ME Mechanical