Graco 311238ZAJ User Manual

Instructions-Parts

NXT

For use with high performance finishing and coating pumps in hazardous or non-hazardous locations. For professional use only.

100 psi (0.7 MPa, 7.0 bar) Maximum Working Pressure

Important Safety Instructions

Read all warnings and instructions in this manual. Save these instructions. See page 3 for model information.

Air Motor

With Linear Sensor

Standard

311238ZAJ

Models with DataTrak™ display include agency approvals listed below.

9902471 Class I, Div 1 Group D T3A

0359

II 1 G

Ex ia IIA T3 Ga

ITS13ATEX27862X

™

With DataTrak

Updated technical information and repair videos are available at www.graco.com. Click on “Tech Support”, and then enter “NXT” in the “Search by Keyword” field.

TI8621a

Contents

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Air Motor Part No. Matrix . . . . . . . . . . . . . . . . . . . . . . . 3

Air Motor Part Nos. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Component Identification . . . . . . . . . . . . . . . . . . . . . . . . . 7

De-icing Control (F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Integrated Air Control Module Accessory . . . . . . . . . . . 8

Motor Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

DataTrak Controls and Indicators . . . . . . . . . . . . . . . . . 10

DataTrak Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Setup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Run Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Replace the DataTrak Module Battery or Fuse . . . . . .14

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Preventive Maintenance Schedule . . . . . . . . . . . . . . . 19

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . . . 19

Air Valve Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Cylinder and Piston Repair . . . . . . . . . . . . . . . . . . . . . 23

Poppet Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Replace the Linear Sensor (if present) . . . . . . . . . . . . 27

Remote DataTrak Connection Kit NXT406 . . . . . . . . . 28

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Air Motor Parts Drawing

(Shown with DataTrak and Low Noise Exhaust) . 29

Air Motor Parts Drawing

(Shown with Linear Sensor) . . . . . . . . . . . . . . . . .30

NXT Model 2200 Air Motors . . . . . . . . . . . . . . . . . . . . 31

NXT Model 3400 Air Motors . . . . . . . . . . . . . . . . . . . . 33

NXT Model 6500 Air Motors . . . . . . . . . . . . . . . . . . . . 35

Air Motor Parts Drawing

(for use with Remote DataTrak) . . . . . . . . . . . . . . 37

Air Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Mounting Hole Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . 42

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . . . . . . 48

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

2 311238ZAJ

Models

Air Motor Part No. Matrix

Check your motor’s identification plate (ID) for the 6-digit part number of your motor. Use the following matrix to define the construction of your motor, based on the six digits. For example, Motor Part No. N65DT0 represents an NXT motor (N), 6500 cc per stroke (6 5), with de-icing exhaust (D) and DataTrak monitoring (T). The last digit (0) is unassigned.

N6 5 D T 0

First Digit

(Motor)

N (NXT Air Motor)

Remote exhaust models have a 1 in. npt(f) exhaust outlet, allowing installation of a muffler or plumbing to route exhaust to a remote location.

Remote DataTrak models do not have the DataTrak display on the motor. An external plug connects to systems using a remote display interface. See pages 37-38 for parts.

Second and Third Digits

(motor size in cc per stroke)

65 6500 D De-icing N None 0 None 34 3400 L Low noise T DataTrak 2 22 2200 R Remote exhaust

Fourth Digit

(Exhaust Type)

(see note below)

Do not operate the remote exhaust air motor without a plumbed exhaust line or muffler installed.

Fifth Digit

(Data Monitoring)

R Remote DataTrak H Linear Sensor

Sixth Digit

(unassigned)

assigned

311238ZAJ 3

Models

Air Motor Part Nos.

Air

Motor

Part No. Series

NXT

Model

Piston

Diameter,

in. (mm) De-Ice

N22DN0 L 2200 6.0 (152)

N22DT0 L 2200 6.0 (152)

N22DH0 L 2200 6.0 (152)

N22LN0 L 2200 6.0 (152)

N22LT0 L 2200 6.0 (152)

N22LR0 L 2200 6.0 (152)

N22LH0 L 2200 6.0 (152)

N22RN0 L 2200 6.0 (152)

N22RT0 L 2200 6.0 (152)

N22RH0 L 2200 6.0 (152)

N34DN0 L 3400 7.5 (191)

N34DT0 L 3400 7.5 (191)

N34DH0 L 3400 7.5 (191)

N34LN0 L 3400 7.5 (191)

N34LN2 L 3400 7.5 (191)

N34LT0 L 3400 7.5 (191)

N34LR0 L 3400 7.5 (191)

N34LH0 L 3400 7.5 (191)

N34RN0 L 3400 7.5 (191)

N34RT0 L 3400 7.5 (191)

N34RH0 L 3400 7.5 (191)

Low

Noise

Remote

Exhaust

Includes

DataTrak

™

Includes

Remote

DataTrak

™

Includes

Linear

Sensor

✔

✔✔

✔

✔✔

✔

✔✔

✔

✔✔

✔

✔✔

✔

✔✔

N65DN0 L 6500 10.375 (264)

N65DT0 L 6500 10.375 (264)

N65DH0 L 6500 10.375 (264)

N65LN0 L 6500 10.375 (264)

N65LN2 L 6500 10.375 (264)

N65LT0 L 6500 10.375 (264)

N65LR0 L 6500 10.375 (264)

N65LH0 L 6500 10.375 (264)

N65RN0 L 6500 10.375 (264)

N65RT0 L 6500 10.375 (264)

N65RH0 L 6500 10.375 (264)

257055 L 6500 10.375 (264)

✿

Air motor includes potted linear sensor approved for use in hazardous locations, but only when it is used with XM

✔

✔✔

✔

✔✔

✔

✔✔

✔✔✿

plural component sprayers.

4 311238ZAJ

Warnings

The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. Refer back to these Warnings. Additional, product-specific warnings may be found throughout the body of this manual where applicable.

WARNING

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent fire and explosion:

• Use equipment only in well ventilated area.

• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop cloths (potential static arc).

• Keep work area free of debris, including solvent, rags and gasoline.

• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes are present.

• Ground all equipment in the work area. See Grounding instructions.

• Use only grounded hoses.

• Hold gun firmly to side of grounded pail when triggering into pail.

• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment until you identify and correct the problem.

• Keep a working fire extinguisher in the work area.

SPECIAL CONDITIONS FOR SAFE USE

Equipment must comply with the following conditions to avoid a hazardous condition which can cause fire or explosion.

• All label and marking material must be cleaned with a damp cloth (or equivalent).

• The electronic monitoring system is required to be grounded. See Grounding instructions.

SKIN INJECTION HAZARD

High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.

• Do not point gun at anyone or at any part of the body.

• Do not put your hand over the spray tip.

• Do not stop or deflect leaks with your hand, body, glove, or rag.

• Do not spray without tip guard and trigger guard installed.

• Engage trigger lock when not spraying.

•Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning, checking, or servicing equipment.

PRESSURIZED EQUIPMENT HAZARD

Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin and cause serious injury.

•Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning, checking, or servicing equipment.

• Tighten all fluid connections before operating the equipment.

• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.

311238ZAJ 5

Related Manuals

MOVING PARTS HAZARD

Moving parts can pinch or amputate fingers and other body parts.

• Keep clear of moving parts.

• Do not operate equipment with protective guards or covers removed.

• Pressurized equipment can start without warning. Before checking, moving, or servicing equip-

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

• Do not operate the unit when fatigued or under the influence of drugs or alcohol.

• Do not exceed the maximum working pressure or temperature rating of the lowest rated system

• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in

• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine

• Do not alter or modify equipment.

• Use equipment only for its intended purpose. Call your Graco distributor for information.

• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.

• Do not kink or over bend hoses or use hoses to pull equipment.

• Keep children and animals away from work area.

• Comply with all applicable safety regulations.

WARNING

ment, follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.

component. See Technical Data in all equipment manuals.

all equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information about your material, request MSDS forms from distributor or retailer.

Graco replacement parts only.

PERSONAL PROTECTIVE EQUIPMENT

You must wear appropriate protective equipment when operating, servicing, or when in the operating area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic fumes, burns, and hearing loss. This equipment includes but is not limited to:

• Protective eyewear

• Clothing and respirator as recommended by the fluid and solvent manufacturer

•Gloves

• Hearing protection

Related Manuals

Component manuals in U.S. English:

Manual Description

311239 Integrated Air Control

Modules Instructions-Parts 311486 DataTrak Conversion Kit Instructions-Parts 312148 NXT Air Motor Mounting

Conversion Instructions-Parts 3A0293 AIr Controls Instructions-Parts 406656 NXT135 Air Valve Seal Kit 406657 NXT144 Air Valve Rebuild Kit 406658 Air Motor Repair Kits 406820 NXT145 Replacement Kit

6 311238ZAJ

Component Identification

Key for FIG. 1

Component Identification

A Air Inlet, 3/4 npt(f) B Bleed-Type Master Air Valve C Air Regulator Adjustment Knob D Air Pressure Gauge E Air Filter (out of view; located at rear of air control kit) F De-icing Control G Air Valve (behind cover)

H DataTrak module (see pages 9-14; not present on all

models) J Runaway Solenoid (component 1) K DataTrak Sensors (component 2) L Air Valve Inlet Port, 3/4 npt(f) M Safety Relief Valve

TI7759a

Detail With Air Valve

Cover Removed

TI8233b

FIG. 1: Component Identification (Model Shown with DataTrak Module and Accessory Air Control Kit)

311238ZAJ 7

Component Identification

De-icing Control (F)

Open with knob or flat blade screwdriver to reduce icing. If needed, adjust enough warm feed air bleed to eliminate icing.

Low noise models have exhaust baffles that can accumulate ice easily.

TI8802aTI8159b

Integrated Air Control Module Accessory

Accessory Air Control Kits include air line components in an integrated assembly. Order the kits separately. See manual 311239 for installation instructions.

Bleed-type Master Air Valve (B)

Trapped air can cause the pump to cycle unexpectedly, which could result in serious injury from splashing or moving parts.

• Required in your system to relieve air trapped between it and the air motor when the valve is closed.

• Be sure the valve is easily accessible from the pump and located downstream from the air regulator.

Air Regulator (C)

Adjusts air pressure to the motor and fluid outlet pressure of pump. Locate it close to the pump. Install a gauge (D) to read air pressure.

Safety Relief Valve (M)

Automatically opens to relieve air pressure, to prevent pump overpressurization.

• NXT011 with locking air regulator and 110 psi (0.76 MPa, 7.6 bar) relief valve

• NXT031 with locking air regulator and 75 psi (0.51 MPa, 5.1 bar) relief valve

• NXT021 with non-locking air regulator and 110 psi (0.76 MPa, 7.6 bar) relief valve.

Air Filter (E)

Removes harmful dirt from compressed air supply.

Graco recommends using an air filter with a minimum measurement of 40 micron.

8 311238ZAJ

Grounding

Motor Lubrication

Graco does not require lubrication beyond the grease installed at the factory or through regular maintenance. With good quality compressed air and normal ambient conditions NXT air motors will run millions of cycles without additional lubrication.

However, if any of the following criteria apply to your system, you will benefit from installing a 3/4 in. air line lubricator in the air line before the air motor or from occasionally adding oil to an air filter cup.

• Air supply does not contain any oil.

• Air supply is very wet.

• Air supply is very dry.

• Air motor is run at low air pressure.

• Air motor is run in unusually hot or cold environments.

Areas that benefit from lubrication:

• main piston o-rings(17),

• sliding valve spool(119/108), and

• motor detent assembly (113).

Add Accessory Air Lubricator

If using an air motor with integrated air controls, add an accessory airline lubricator❄ to the motor inlet. The oil

will move through the air filter.

Depending on air quality you may need to change the air filter more frequently.

❄

Graco offers airline lubricators for NXT air motors. Order 214848 (1/2 in.) for NXT 2200 and NXT 3400 air motors. Order 214849 (3/4 in.) for NXT 6500 air motors.

If using an air motor without integrated air controls, add a standard type filter/regulator/lubricator that is sized for the specific air motor, such as 217073 (3/4 in.) or 217072 (1/2 in.).

Grounding

Add Lubrication

The three methods for adding lubrication are described below.

Lubricate Air Valve

Perform these steps annually, or more often depending on your duty cycle, air pressure, and air quality. Use a high quality lithium-based grease.

1. Remove the 10 air valve cover screws (124) and air valve cover (112).

2. Grease all visible moving parts, especially detent (113) and valve pistons (119).

Lubricate Air Filter Bowl

If using a motor with integrated air controls, add 50-75 ml of oil to the air filter bowl and run the motor for a few minutes at a fast cycle rate. The oil will move through

the air valve and main piston.

The equipment must be grounded to reduce the risk of static sparking. Static sparking can cause fumes to ignite or explode. Grounding provides an escape wire for the electric current.

The equipment must be grounded. Grounding reduces the risk of static and electric shock by providing an escape wire for the electrical current due to static build up or in the event of a short circuit.

See F

. 2. Use the ground screw (60) and lockwasher (61) to attach Part No. 244524 Ground Wire (GW) at the rear of the air motor. Tighten the screw securely. Connect the other end of the ground wire to a true earth ground.

60, 61

TI8250a

It is normal for some oil to come out through the exhaust.

311238ZAJ 9

. 2. Ground Wire

DataTrak Controls and Indicators

DataTrak is included with certain models. See page 3 for a list of models featuring DataTrak.

It is recommended that a 3/4 in. air line lubricator be used with DataTrak models.

For remote DataTrak models, see your system operation manuals.

To prevent damage to the soft key buttons, do not press the buttons with sharp objects such as pens, plastic cards, or fingernails.

Key for FIG. 3

T Runaway Limit, in cycles per minute (user settable;

00=OFF)

U Lower Displacement (user settable)

V Flow Rate Units (user settable to gpm [US],

gpm [Imperial], oz/min [US], oz/min [Imperial], l/min, or

cc/min) W LED (fault indicator when lit) X Diagnostic Reference Card (see T Y Display

/min,

ABLE

1, page 13)

PF Prime/Flush Key (Enables Prime/Flush mode. While in

Prime/Flush mode, runaway protection is disabled and the batch totalizer [BT] will not count.)

RK Reset Key (Resets faults. Press and hold for 3 seconds to

clear the batch totalizer.) CF Cycle/Flow Rate BT Batch Totalizer GT Grand Totalizer RT Runaway Toggle (enable/disable) UT E1 Toggle DT E2 Toggle ST E5 Toggle

Run Mode

CF BT

TI8622b

Y; See Details at right.

TI8215a

Setup Mode

TI8623b

FIG. 3. DataTrak Controls and Indicators

10 311238ZAJ

DataTrak Operation

DataTrak is included with certain models. See page 3 for a list of models featuring DataTrak.

For remote DataTrak models, see your system operation manuals. See pages 37-38 for parts.

The DataTrak display (Y) will turn off after 1 minute to save battery life. Press any key to wake up the display.

Setup Mode

1. See FIG. 3. Press and hold for 5 seconds until Setup menu appears.

2. To enter settings for runaway, lower size, and flow rate units, and to enable runaway, E1, E2, and E5

error options, press to change the value, then

to save the value and move the cursor to the

next data field.

Run Mode

Runaway

The runaway control should be tested regularly. To test, go to Setup Mode and set value to 1 (one). Pump should stop in six cycles.

1. See FIG. 3. If pump runaway occurs, the runaway solenoid will actuate, stopping the pump. The LED (W) will flash and the display (Y) will indicate a runaway condition (see Table 1).

2. To reset runaway monitor, close master air valve (B). Wait for air to completely bleed off the air motor before going to step 3. The screen will change to indicate this, as shown below.

When runaway, E1, E2, and E5 error options are enabled, a ✓ will appear on the setup screen. See F

. 3.

3. Move the cursor to the E5 error enable option field,

then press once more to exit Setup mode.

3. Press to clear the diagnostic code and reset the runaway solenoid.

4. Open master air valve (B) to restart pump.

To disable runaway monitoring, go to setup mode and set runaway value to 0 (zero) or toggle (RT) off

(see F

. 3).

311238ZAJ 11

DataTrak Operation

Prime/Flush

1. See FIG. 3. To enter Prime/Flush mode, press any

key to wake up the display, then press . The Prime/Flush symbol will appear in the display and

the LED will flash .

2. While in Prime/Flush mode, runaway protection is disabled and the batch totalizer (BT) will not count.

3. To exit Prime/Flush mode, press any key to wake

up the display, then press . The Prime/Flush symbol will disappear from the display and the LED

will stop flashing.

Counter/Totalizer

See FIG. 3. The last digit of the batch totalizer (BT) represents tenths of gallons or liters. To reset the totalizer, press any key to wake up the display, then press and

hold for 3 seconds.

Display

See FIG. 3. The display (Y) will turn off after 1 minute of inactivity in Run mode or 3 minutes in Setup mode. Press any key to wake up the display.

DataTrak will continue to count cycles when display is off.

Diagnostics

DataTrak can diagnose several problems with the pump. When the monitor detects a problem, the LED

(W, F on the display. See Table 1.

To acknowledge the diagnosis and return to the normal

operating screen, press once to wake up the display, and once more to clear the diagnostic code

screen.

. 3) will flash and a diagnostic code will appear

If flow rate is set to both totalizers will dis-

play the number of pump cycles.

/min,

12 311238ZAJ

Table 1: Diagnostic Codes

DataTrak Operation

Symbol Code

No.

E-1 Diving Up Leak during upstroke. Worn piston valve or packings.

E-2 Diving Down Leak during downstroke. Worn intake valve.

E-3 Low Battery Battery voltage too low to stop

E-4 Service

Code Name Diagnosis Cause

Runaway Pump running faster than set runaway

limit.

runaway.

Problem with stopping runaway. • Damaged solenoid.

Component 1

• Increased air pressure.

• Increased fluid output.

• Exhausted fluid supply.

• Low battery. To replace battery, see page 14.

• Disable Runaway mode until battery is replaced; see page 11.

• Damaged valve carriage.

E-4 Disconnected

Solenoid

E-5 Service

Component 2

E-6 Blown Fuse Fuse is blown. • Faulty solenoid or solenoid wiring.

Solenoid is disconnected. • Solenoid unplugged.

• Damaged solenoid wires.

Problem with sensing valve movement. • Sensors unplugged.

• Sensors mounted incorrectly.

• Damaged sensors.

• Damaged valve carriage.

• Extreme temperatures (above 140°F [60°C]).

• Disable Runaway mode until fault is corrected and fuse is replaced. See pages 11 and 14.

311238ZAJ 13

DataTrak Operation

Replace the DataTrak Module Battery or Fuse

To reduce the risk of fire and explosion, the battery and fuse must be replaced in a non-hazardous location.

Use only an approved replacement battery, shown in Table 2, and an approved fuse, shown in Table 3. Use of an unapproved battery or fuse will void Graco’s warranty and Intertek and Ex approvals.

1. Remove two screws (135). Carefully slide the DataTrak module (131) out of the housing (132). See F

. 4.

To replace the battery,

disconnect the used bat-

tery and replace with an approved battery.

Use only a Graco-approved replacement fuse (131a).

Table 2: Approved Batteries

Energizer alkaline # 522

Varta alkaline # 4922

Ultralife lithium # U9VL

Duracell alkaline # MN1604

To replace the fuse (131a):

a. Remove the screw, metal strap, and plastic

holder.

Series

132

Letter

131

135

TI8216c

. 4. Remove DataTrak Module

2. Disconnect the runaway solenoid and sensor cables from the module board. See F

. 5.

3. Take the DataTrak module (131) to a non-hazardous location.

b. Pull the fuse away from the board.

c. Replace with a new fuse (131a).

Table 3: Approved Fuses

DataTrak

Part No. Series* Fuse Required

289822 A or B 24C580

C and later 24V216

All other part numbers

A 24C580

B and later 24V216

* FIG. 4 shows where to find the Series letter.

Sensor Cable Connection

Fuse (131a)

Battery

TI7757a

Solenoid Cable Connection

. 5. DataTrak Battery and Fuse Location

14 311238ZAJ

Troubleshooting

Also see the troubleshooting section in the Integrated Air Control Modules manual 311239.

Problem Cause Solution

Air motor will not run. Damaged main air valve spool or

poppets.

Rebuild main air valve. See page

19. Replace poppets (12). See page

26.

Troubleshooting

DataTrak solenoid engaged. Runaway occurred (DataTrak models only).

Air continuously exhausting around air motor shaft on up stroke.

Air continuously exhausting from muffler on up and down strokes.

Air motor “bounces” at top of stroke. Damaged bottom poppet. Replace bottom poppet (12). See

Air motor “bounces” at bottom of stroke.

Slow motor reversal. Plugged poppet muffler. Remove muffler (58) and clean.

Icing on muffler. Air motor operating at high pressure

Damaged air motor shaft seal. Replace air motor shaft seal (7),

De-icing control is open. Close de-icing control with knob or

Damaged air valve carriage, plate, or seal.

Damaged or worn motor piston o-ring.

Bottom valve to motor gasket leaking.

Damaged top poppet. Replace top poppet (12). See page

Top valve to motor gasket leaking. Replace gasket (46).

Leaking signal air from poppet (12), gaskets (46), exhaust cover gasket (102), carriage cover gasket (106), piston valve (119), piston valve stop (110), or sleeve seal (109).

Valve assembly is dry and sticky. Add oil to air filter cup or add an air

or high cycle rate with high moisture content air.

See Runaway on page 11.

leather backup packings (8), and retaining ring (9). See page 23.

flat blade screwdriver.

Replace the carriage (108), plate (105), or seal (104). See page 21.

Replace piston o-ring (17). See page 23.

page 26.

Replace gasket (46).

26.

Replace leaking part or gasket.

line oiler.

Reduce pressure, cycle rate, or duty cycle of motor, or open de-icing control with knob or flat blade screwdriver.

311238ZAJ 15

+ 33 hidden pages