PennEngineering • www.pemnet.com
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Instruction Manual - RIV 938S
MAINTENANCE
Maintenance operations must be carried out with the tool stopped and disconnected from the pneumatic supply line.
Warnings:
• The tool maintenance instructions must be followed carefully.
• To ensure safety and perfect tool efficiency, it is recommended to use exclusively ORIGINAL spare parts.
CLEANING
It is a good rule to completely clean and grease the tool on a periodic basis (depending on the type and frequency of
use). These operations must be carried out at least once a year.
Shut-off all sources of power to the tool.
The operator must wear and use suitable personal protections before starting to clean the tool.
ORDINARY MAINTENANCE
In order to prevent stoppages and faults of the tool, an ordinary maintenance (including inspections, checks and
operations) must be scheduled to keep the following under systematic control:
• State of lubrication of the tool.
• State of wear of consumable parts.
REFILLING THE HYDRAULIC CIRCUIT WITH OIL
The hydraulic circuit needs to be refilled with oil after a continuous use, and when you notice a reduction
in the tool stroke.
Proceed as follows (see photo at right):
• Disconnect the airline from the tool inlet.
• Unscrew the manostat (A) with a wrench.
• Remove cap together with relevant washer 27.
• Put the tool in horizontal position and slowly pour in the hydraulic oil
(ISO VG 32 type) 50 until the circuit is full.
• Screw cap back on, together with relevant washer 27.
• Connect the tool to compressed air line and start up a couple of idle
cycles. Stop pulling the trigger and slowly loosen screw 27; make sure
that the circuit is full with oil and that no air bubbles are left inside.
Wear gloves when managing the oil.
Do not throw the old oil outdoors. Hand it over to an authorized waste
disposal center.
Warning!: If you should accidentally spill oil on your skin, wash and rinse thoroughly with soap and
water.
PARTS SUBJECT TO WEAR
On a periodic basis check the rubber base for wear, as this is what ensures the stability of the tool. If it should need
replacing, order the spare base from PennEngineering indicating the year/serial number of the tool.
On a periodic basis check the screws and heads for wear and, if necessary, replace them as indicated (page 20).
