Airmax SilentAir G25 User manual

Important Information .................. 2
Product Contents ........................ 2
Installation Instructions.................3-7
Changing the Air Filter ................... 8
Notes .................................. 8
Table of Contents:
INSTALLATION MANUAL
Item #510108
SilentAir™G25
(RP25 74R)
Maintenance Kit

IMPORTANT INFORMATION:
Please read these instructions thoroughly before use. Failure to follow instructions may
result in equipment damage or failure, losses, injury or death.
WARNING:
To reduce the risk of electric shock or injury:
• ALWAYS unplug the compressor from power source and remove pressure from
airlines before installing the maintenance kit.
IMPORTANT: Airmax® is not responsible for equipment damage or failure, losses,
injury or death resulting from failure to follow safety precautions, misuse or
abuse of equipment.
PRODUCT CONTENTS:
CE
F
A
BD
ACylinder Sleeve
BCylinder Gasket
CPiston Cup
DO-Ring Gasket
E2 Leaf Valves
F4 Screws (The 2 with the Torx head
will not be used)
What’s Included:
Torx head will
not be used
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2

Installation of Your G25 (RP25 74R) Rocking
Piston Compressor Maintenance Kit
• 5/32” Allen Wrench
• 1/8” Allen Wrench
• Flathead Screwdriver
• Small Pick Tool
Tools Required:
Step 1
Use a 5/32” Allen wrench to remove
the four screws holding down the
cylinder head.
Step 2
Remove the cylinder head and valve
plate and set to the side.
See Video Instructions of the RP25 (74R)
Maintenance Kit installation online at
airmaxeco.com/InstallRP25
[e-mail] 3

Step 4
Use a 1/8” Allen wrench to remove
the two screws on the piston.
Step 5
Remove and discard the worn
piston cup and position the new
one beneath the piston retainer
plate making sure the lip of the new
piston cup faces up.
Step 3
Remove and discard the old
cylinder sleeve.
Piston Cup
Piston Retainer Plate
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4

Step 7
Using a athead screwdriver,
remove the screw holding the
leaf valve to the valve plate. If
necessary, the screw can be heated
for 10-15 seconds using a propane
torch. Be sure the head and screw
have cooled completely before
continuing to Step 8.
Step 8
Discard the old leaf valves but
be sure to save the screw, square
washer and valve limiter.
[e-mail]
Step 6
Firmly push the piston retainer plate
with piston cup into the cylinder
sleeve. Flip over to ensure the piston
cup is properly aligned within
the cylinder sleeve. Reinstall the
cylinder sleeve on the compressor
and secure the piston retainer plate
using the two new screws from your
maintenance kit (Recommended
Torque: 34-38 in lb).
5

Step 9
Install the leaf valve, ensuring the leaf
valve and limiter are located on the
side opposite of the o-ring gasket.
Place the leaf valve with the limiter on
top in the “U” shaped groove on the
valve plate and cover the hole. Ensure
the curved portion of the limiter rests
on the leaf valve.
Step 10
While holding the leaf valve and
limiter in place, on the reverse side,
line up the second leaf valve to cover
the opposite hole. Insert the screw
and square washer and secure the
leaf valves into place. Ensure each leaf
valve completely covers the holes in
the valve plate and that they are NOT
covering the same hole.
Valve Limiter
U-Shaped Groove
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6

[e-mail]
Step 12
Place the valve plate back onto the
compressor body. Remove and
replace the old cylinder gasket.
Step 13
Flip the cylinder head back onto
the compressor, align and push
rmly into place. Reinstall the four
screws using a 5/32” Allen wrench.
Tighten down rmly to complete
the installation (Recommended
Torque: 47-50 in lb).
Once complete, we recommend
to change the compressor air lter.
See instructions on pg. 8.
Step 11
Remove the old o-ring gasket using
a small pick tool and replace.
7

THANK YOU FOR CHOOSING:
Airmax, Inc.
15425 Chets Way Street
Armada, MI 48005
866-424-7629
www.airmaxeco.com
#510524 V1.1
Changing the Air Filter:
Changing the air lter should be done every 3-6 months
To replace the air lter, hold the base of the air lter and turn the top
counterclockwise to remove the air lter cap. Replace the old air lter
element with a new one.
NOTES
8