Airmax SilentAir G33 User manual

Important Information .................. 2
Product Contents ........................ 2
Installation Instructions.................3-8
Changing the Air Filter ................... 8
Table of Contents:
INSTALLATION MANUAL
Item #510111
SilentAir™G33
(RP33 82R)
Maintenance Kit

C
E
F
ABD
A2 Cylinder Sleeves
B2 Cylinder Gaskets
C4 Leaf Valves
D2 O-Ring Gaskets
E2 Piston Cups
F8 Screws (The 4 with the Torx head
will not be used)
What’s Included:
Torx head will
not be used
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:
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2

Installation Instructions:
• 5/32” Allen Wrench
• 1/8” Allen Wrench
• T25 Torx Wrench
• Flathead Screwdriver
• Small Pick Tool
• Heat Source
Tools Required:
Step 1
Use a 5/32”Allen wrench to remove the
two screws holding down the airow
manifold. Remove and save the two
bushings underneath the manifold.
Step 2
Use a T25 Torx wrench to remove
the remaining six screws on the
top of the cylinder heads. Take
note that the two inner screws are
shorter than the outer four screws.
Bushings
See Video Instructions of the G33 (RP33 82R)
Maintenance Kit installation online at
airmaxeco.com/InstallRP33
[e-mail] 3

Step 3
Remove the cylinder heads along with
the valve plate and set to the side.
Step 4
Starting with one cylinder, use a 1/8”
Allen wrench to remove the two
screws on the piston retainer plate.
Step 5
Remove and discard the old
cylinder sleeve.
Step 6
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.
Piston Cup
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4

Step 8
Install the cylinder sleeve into the
grooves of the compressor body
and line up the holes for the piston
retainer plate. Use two of the new
screws provided to secure the piston
retainer plate (Recommended
Torque: 34-38 in lb). Repeat Step 4
thru 8 for the second cylinder before
moving on to Step 9.
Step 7
Place the retainer plate and and
piston cup on top of the new piston
cylinder sleeve. Flip over to ensure
the piston cup is properly aligned
within the cylinder sleeve.
Step 9
Use a small pick tool to remove
the two o-ring gaskets and two
cylinder gaskets from the bottom
and top of the valve plate.
Step 10
Remove the leaf valves. The leaf
valves are originally installed with
threadlock. We recommend using a
propane torch or other heat source
to soften the threadlock before
removing the screws. Apply heat
for approximately 5-20 seconds and
gently remove the screws (Fig. 1).
Save the screws but discard the leaf
valves (Fig. 2). Repeat this process for
all four leaf valves. NOTE: On the top
leaf valves, also save the valve limiter
as this is needed when reinstalling
the new leaf valves.
Fig. 1 Fig. 2
[e-mail] 5

Step 11
Install the new leaf valves. Align
the leaf valve over the hole on the
valve plate and secure with a set
screw. Repeat for the second side.
Do not over tighten (Recommended
Torque: 10-13 in lb).
Step 12
Flip the valve plate over and repeat
the process for the other two leaf
valves, heating the screws with a
propane torch for approximately
5-20 seconds. When installing the top
two leaf valves, note to reinstall the
valve limiter with the curved portion
resting on the leaf valve. Ensure all
four leaf valves completely cover the
holes (Recommended Torque: 10-
13 in lb).
Valve Limiter
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Step 14
Flip the valve plate back onto the
cylinder and push down rmly to
secure into place.
6
Step 13
Install the two new o-rings onto the
bottom of the valve plate.

[e-mail]
Step 17
Install the four longer screws into
the holes along the outside of the
compressor. Then install the two
smaller screws into the inner holes.
Securely tighten all six screws evenly
to ensure proper seal (Recommended
Torque: 47-50 in lb).
Step 18
Reapply to two bushings onto
the two remaining holes in the
cylinder head.
7
Step 15
Install the two new gaskets onto
the top of the valve plate.
Step 16
Install the head cover plates. Align
the pins to the holes on top of the
valve plate.

#510523 V2.1
THANK YOU FOR CHOOSING:
Airmax, Inc.
15425 Chets Way Street
Armada, MI 48005
866-424-7629
www.airmaxeco.com
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.
8
Step 19
Reinstall the manifold using a 5/32”
Allen wrench and the remaining
two screws. Tighten the screws
rmly to complete the installation
(Recommended Torque: 47-50 in lb).
Once complete, we recommend to
change the compressor air lter.