Die Head Set-Up And Use; Removing/Installing Die Head; Quick-Opening Die Heads - RIDGID 535M Manual

operation, do not use the machine until it has been
repaired.
• Depress and hold the foot switch. Inspect the mov-
ing parts for misalignment, binding, odd noises or
any other unusual conditions. Remove foot from
the foot switch. If any unusual conditions are found,
do not use the machine until it has been repaired.
For 535 Auto Chuck machines, confirm that the
FOR rotation closes the chuck and REV rotation
opens it.
• Place die head in the use position. Depress and hold
the foot switch. Check for oil flow through the die
head. Remove foot from the foot switch.
14. Move the REV/OFF/FOR Switch to the OFF posi-
tion, and with dry hands unplug the machine.

die Head Set-up and use

The 535 Manual Chuck/535 Auto Chuck Threading Ma -
chines can be used with a variety of RIDGID Die Heads to
cut pipe and bolt threads. Information is included here for
Quick-Opening, Self-Opening and Semi-Automatic Die
Heads. See the RIDGID catalog for other available die
heads.
Die Heads using Universal Dies for pipe require one set of
dies for each of the following pipe size ranges: (
3 / "), ( 1 / " and ¾") and (1" through 2"). NPT/NPSM dies
8 2
must be used in NPT Die Heads and BSPT/BSPP dies
must be used in BSPT Die Heads – The cam plate is
marked for each.
Die heads using Bolt dies require a dedicated set of dies
for each specific thread size.
High Speed dies are recommended for threading at 40
rpm and higher speeds. See the RIDGID catalog for dies
available for your die head.
Always cut a test thread to confirm proper thread size after
changing/adjusting the Dies.

Removing/Installing die Head

Insert/remove Die Head Post into mating hole in car-
riage. When fully inserted, the Die Head will be held in
place. When it is installed, the Die Head can be pivoted on
post to align it with pipe or it can be swung up and out of
the way to allow use of cutter or reamer.

Quick-opening die Heads

Quick opening die heads include Model 811A and 531/532
Bolt. Quick opening die heads are manually opened and
closed for user specified thread length.
999-998-086.09_REV. C
535 Manual Chuck/535 Auto Chuck Threading Machines
Washer Tongue
Size Bar
Throwout Lever
Figure 4 – Quick-Opening Die Head
Inserting/Changing the Dies
1. Place the die head with numbers facing up.
2. Move throwout lever to OPEN position (Figure 5).
1 / "), ( 1 / " and
8 4
Figure 5 – Open/Closed Lever Position
3 Loosen clamp lever
approximately three
turns.
4. Lift tongue of wash-
er out of slot in size
bar. Move washer to
end of slot (Figure
6).
5. Remove dies from
the die head.
6. Insert appropriate dies into the die head, numbered
edge up until the indicator line is flush with the edge of
the die head (see Figure 6). Numbers on the dies
must correspond with those on the die head slots.
Always change dies as sets – do not mix dies from dif-
ferent sets.
7 . Move link index mark to align with desired size mark on
size bar. Adjust die insertion as needed to allow move-
ment. Washer tongue should be in slot to left.
8. Tighten clamp lever.
Link
Dies
Hole for Locking Pin (LH Die Heads)
Throwout Throwout
Lever Lever
Open
Indicator
Line
Figure 6 – Inserting Dies
Clamp Lever (Hex Nut
on Mono Dies)
Post
Closed
Indicator
Line
9