Maintenance - REMS Power-Press E Instruction Manual

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times if necessary. Turn the pipe slightly. Read and follow the installation and
assembly instructions of the system manufacturer.
In the REMS Akku-Ex-Press Cu ACC, insert the expanding head into the pipe
up to the stop and press the expanding head/drive machine against the pipe.
Switch on the drive machine. If the expanding head is open, the drive machine
switches automatically to return and the expanding head is closed again. Read
and follow the installation and assembly instructions of the system manufacturer.
3.4. Electronic battery charging status check with complete discharge protec-
tion
All REMS cordless presses made as of 2011-01-01 will be fitted with an elec-
tronic battery charging status check with complete discharge protection and
battery charge indicator with 2-colour LED (23) green/red. The LED lights green
when the battery is fully or still sufficiently charged. The LED lights red when
the battery must be charged. The drive unit finishes off the current pressing
cycle and can then only be switched on again when a charged battery is inserted.
If the drive unit is not used, the LED goes out after 2 hours but comes on again
when the tool is switched back on.

4. Maintenance

WARNING
Notwithstanding the servicing listed below it is recommended to send in the
REMS drive units together with all the tools (e.g. pressing tongs, pressing tongs
Mini, pressing rings with adapter tongs, compression heads, expanding heads)
and accessories (e.g. batteries, rapid chargers) at least once a year to an
authorised REMS customer service station for inspection and repeated inspec-
tion of electrical equipment in accordance with EN 62638:2010-08 (VDE 0702).
4.1. Servicing
WARNING
Before service work, pull the mains plug or remove the battery!
Keep the pressing tongs, pressing tongs Mini, pressing rings, adapter tongs,
pressing heads and expanding heads, and particularly their receptacles, clean.
Clean heavily soiled metal parts with turpentine oil, for example, and then
rustproof them.
Clean plastic parts (for ex. housing, batteries) only with a mild soap and a damp
cloth. Do not use domestic cleaning agents. These frequently contain chemicals
that can attack plastic parts. On no account use petrol, turpentine oil, thinners
or similar products to clean plastic parts.
Ensure that liquids never get inside the electrical equipment. Never immerse
the electrical equipment in liquid.
4.1.1. Pressing tongs, pressing tongs Mini, pressing rings and adapter tongs
Pressing tongs, pressing tongs Mini, pressing rings and adapter tongs must
be checked regularly for smooth action. Clean pressing tongs, pressing tongs
Mini, pressing rings and adapter tongs if necessary and lightly grease the bolts
(12) of the pressing jaws, pressing segments and adapter jaws with machine
oil. Remove deposits from the pressing contour (11). Check the proper func-
tioning of all pressing tongs, pressing tongs Mini, pressing rings and adapter
tongs regularly with a test pressing with inserted pressing fitting. A perfect
pressing is only produced with full closure of the pressing tongs, pressing tongs
Mini, pressing ring or pressing segment. Full closure of the pressing jaws (10),
pressing rings (20) or pressing segment (21) both at their tips (Fig. 1 and Fig.
16 to 19 at "A") and on the opposite side (Fig. 1 and Fig. 16 to 19 at "B") can
be observed after completing the pressing. If a visible burr is created on the
pressing sleeve when closing the pressing tongs, pressing tongs Mini, pressing
ring or pressing segment, the pressing may be faulty or leaking (see 5. Trouble).
Damaged or worn pressing tongs, pressing tongs Mini, pressing rings and
adapter tongs may no longer be used. In case of doubt, send in the drive
machine together with all pressing tongs, pressing tongs Mini, pressing rings
and adapter tongs to an authorised REMS service shop for inspection.
4.1.2. Radial presses
Keep the press tongs receptacle clean, in particular clean the press rollers (5)
and tongs shank (2) at regular intervals and then lightly grease them with
machine oil. Check the functional reliability of the drive unit regularly by making
a pressing with the largest press fitting used. If the pressing tongs, pressing
tongs Mini, pressing rings close completely during this pressing operation (see
above), the drive unit is functionally reliable.
4.1.3. Axial presses
Keep the pressing heads (14) and locating holes inside the pressing device
clean. Keep the expanding heads (16) and expanding mandrel (18) clean.
Lightly grease the expanding mandrel (18) from time to time.
4.1.4. Pipe expanders
Keep the expanding device (15), expanding heads (16) and expanding mandrel
(18) in REMS Akku-Ex-Press Q & E ACC, REMS Power-Ex-Press Q & E ACC,
REMS Akku-Ex-Press P ACC, and REMS Akku-Ex-Press Cu ACC clean. Grease
the expanding mandrel (18) lightly from time to time.
4.2. Inspection/repair
WARNING
Before any repair work, pull the mains plug or remove the battery! This
work may only be performed by qualified personnel.
The gearbox of the drive unit in the REMS Power-Press E is maintenance -free.
They operate in a permanent grease filling and therefore require no lubrication.
The motor of the REMS Power-Press E and REMS Power-Press ACC has
carbon brushes. These are subject to wear and must therefore be inspected
or replaced from time to time. Only use genuine REMS Power-Press carbon
brushes. The REMS drive units (except for REMS Power-Press E) operate
electrohydraulically. If the pressing power is insufficient or oil is lost, the drive
unit must be inspected and if necessary repaired by REMS or by an authorised
REMS after-sales service facility.
NOTICE
Damaged or worn pressing tongs, pressing tongs Mini, pressing rings, adapter
tongs, pressing heads or expanding heads cannot be repaired.
5. Trouble
For preventing damages make sure to avoid operating situations like exempla-
rily shown in Fig. 13 through 15, that no distortion between pressing tongs,
pressing tongs Mini, pressing rings, adapter tongs, fitting and drive unit occurs.
5.1. Trouble: Drive unit does not operate.
Cause:
● Worn carbon brushes (REMS Power-Press E,
REMS Power-Press ACC, REMS Power-Ex-Press Q & E ACC).
● Mains lead defective (REMS Power-Press E,
REMS Power-Press ACC, REMS Power-Ex-Press Q & E ACC).
● Battery empty or defective (REMS Akku drive units).
● Drive unit defective.
5.2. Trouble: Radial press does not finish pressing operation, pressing tongs,
adapter tong, pressing ring does not close completely.
Cause:
● Drive unit overheated (REMS Power-Press E,
REMS Power-Press ACC, REMS Power-Ex-Press Q & E ACC).
● Worn carbon brushes (REMS Power-Press E,
REMS Power-Press ACC, REMS Power-Ex-Press Q & E ACC).
● Slipping clutch defective (REMS Power-Press E).
● Battery empty or defective (REMS Akku drive units).
● Drive unit defective.
● Incorrect pressing tong, pressing tong Mini, pressing ring or pressing
head (pressing contour, size) inserted.
● Pressing tong, pressing tong Mini, pressing ring or adapter tong with stiff
action or defective.
5.3. Trouble: During closing of the pressing tong, pressing tong Mini, pressing
ring or pressing segments a marked ridge is created on the
compression sleeve.
Cause:
● Damaged or worn pressing tong, pressing tong Mini, pressing ring,
pressing segments or pressing contour.
● Incorrect pressing tong, pressing tong Mini, pressing ring or adapter tong
(pressing contour, size) inserted.
● Unsuitable matching of compression sleeve, pipe and support sleeve.
5.4. Trouble: Pressing jaws close unevenly when the pressing tongs, pressing
tongs Mini are not loaded at "A" and "B" (Fig. 1).
Cause:
● Pressing tong, pressing tong Mini have been dropped, compression
spring is bent.
5.5. Trouble: In axial presses, the pipe is squeezed in between the
compression sleeve and fitting collar.
Cause:
● Expansion too long.
● Pipe pushed too wide onto the support sleeve of the compression sleeve
connector.
● Wrong expanding head (compression sleeve system, size) used.
● Unsuitable matching of compression sleeve, pipe and support sleeve.
5.6. Trouble: A noticeable gap is left between the compression sleeve and
the fitting collar after closing the compression heads in axial
pressing.
Cause:
● Pipe crushed between the compression sleeve and the fitting collar, see 5.5.
● Wrong compression head (compression sleeve system, size) used.
5.7. Trouble: Expander does not finish the expanding, expanding head does
not open completely.
Cause:
● Drive machine overheated (REMS Power-Ex-Press Q & E ACC).
● Worn carbon brushes (REMS Power-Ex-Press Q & E ACC).
● Battery flat or defective (REMS cordless drive machines).
● Defective drive machine.
● Wrong expanding head (compression sleeve system, size) used.
● Expanding head too tight or defective.
● Expanding device set incorrectly (REMS Akku-Ex-Press Cu ACC).
● Compression sleeve and expanding head not far enough apart.
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