To Air Source
Existing Fittings
Apply thread sealant to all
air tank fittings that have
not been pre-coated.
Thread sealant is provided.
B
J
A
H
ECD
H
G
IK
Installing the Expansion Tank Kit
Assembling and Installing the Air Tank
Kit Diagram
Installing the Expansion Tank Kit
12
Figure 1
Item Part No. Description Quantity
A 10980 2 Gallon AirTank 1
B 20515 Air Line 15’
C 18444 3/8”FlatWasher 8
D 17188 3/8” - 16 x1.25 Bolt 4
E 18435 3/8” - 16 Nyloc Nut 4
F 13586 ThreadSealant 1
G 21779 1/4” x 1/4” Swivel Elbow 1
H 21261 1/4”MNPT -1/2” PTCConnector 2
I 21731 Plug 2
J 21263 1/4” MNPT- 1/2”PTC 90°Elbow 2
K 21754 1/4”DrainValve 1
Hardware List
IMPORTANT NOTE: Depending on the orienta-
tion of the tank once it is mounted, the fittings may
go into different ports on the tank. The drain valve
must always be put into the port facing downwards
(Figure2).
IMPORTANT NOTE: Apply the provided thread
sealant to all of the air tank fittings that have not
been pre-coated with sealant.
1. Attach thetwoairfittingstotheports oneither end
ofthe tank(Figure1).
2. Chooseamountinglocationfortheaccumulator
tank.
NOTE: Be sure that there is ample room for the
air lines and that they will be clear of any heat
sources.
3. Attach theswivelelbow fittingtotheportonthe
expansiontankthatwillbefacingupwardsoncethe
tankis mounted(Figure1).
4. Attach thedrain valvetotheporton theexpansion
tankthat willbefacingdownwardsonce thetankis
mounted(Figures 1and 2).
5. Attach theplugstothetwo remainingportsonthe
expansiontank (Figures1 and2).
6. Attach thetankto thechosenmountinglocation
usingtheprovidedbolts,flatwashers,andnyloc
nuts(Figures 1and 2).
Attaching the Air Lines
1. Deflatetherollinglobeairsleevesand disconnect
theairfittingsfromthesleeves. Removethe
existingairfittingsfromtheairsleeves.
2. Attachthesupplied90°1/4”x1/2”airfittingsinto
theairportsatthetopofthesleeves(Figure1).
3. Connectalengthofairlinefromone1/2”airfitting
fromtheexpansiontanktothefittinginoneofthe
sleeves(Figure1).
4. Connectanotherlengthofairlinefromtheremaining
1/2”airfittingfromtheexpansiontanktothefittingin
theothersleeve(Figure1).
5. Attach the1/4”air linefromthe existingteeforthe
manualfillvalvetotheelbowontheexpansion
tank(Figure 1).
6. Turnthekeyonand letthesuspensionresumeride
height. Checkfor leaks.
Figure 2
