Hotsy 1700 Series User manual

8.914-380.0 - W 08/01/17
1700 Series
Cold Water - Electric Powered -
Stationary
Operator’s Manual Pressure Washer
MODELS: 1.106-511.0
1710
1.106-512.0
1720
1.106-513.0
1722
1.106-514.0
1723
1.106-515.0
1724
1.106-516.0
1725
1.106-529.0
1743
1.106-530.0
1744
1.106-531.0
1745
1.106-534.0
1753
1.106-535.0
1754
1.106-536.0
1755
For the Hotsy Dealer nearest you,
consult our web page at
www.hotsy.com

2Hotsy 1700 Operator’s Manual 8.914-380.0 - W
Machine Data Label

3
Table of Contents
Machine Data Label. . . . . . . . . . . . . . . . . . . . . . . . . .2
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . .3
How To Use This Manual . . . . . . . . . . . . . . . . . . . . .4
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Operations
Pre-Operation Check . . . . . . . . . . . . . . . . . . . . . . . .8
Set-up Procedures . . . . . . . . . . . . . . . . . . . . . . . . . .8
Operating Instructions. . . . . . . . . . . . . . . . . . . . . . . .8
Shut Down Procedures. . . . . . . . . . . . . . . . . . . . . . .8
Component Identification . . . . . . . . . . . . . . . . . . . . .9
How To Use The Detergent Injector . . . . . . . . . . . .10
General Washing Techniques. . . . . . . . . . . . . . . . .11
Maintenance
Pump Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . .11
Unloader Valves . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Nozzles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Winterizing Procedure. . . . . . . . . . . . . . . . . . . . . . .11
Low Pressure Diagnosis . . . . . . . . . . . . . . . . . . . . .11
Multi-Room Installation . . . . . . . . . . . . . . . . . . . . . .12
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . .13
Preventative Maintenance . . . . . . . . . . . . . . . . . . .15
Parts
Exploded View - Left Side. . . . . . . . . . . . . . . . . . . 18
Exploded View - Right Side . . . . . . . . . . . . . . . . . 19
Exploded View Parts List . . . . . . . . . . . . . . . . . . . 20
Exploded View Parts List . . . . . . . . . . . . . . . . . . . 22
Hose & Spray Gun Assembly . . . . . . . . . . . . . . . . 25
Pressure Washer Specifications. . . . . . . . . . . . . . 26
HB Series Pump Exploded View. . . . . . . . . . . . . . 28
HM.3 Series Pump Exploded View. . . . . . . . . . . . 30
HX.2 Pump Series Exploded View . . . . . . . . . . . . 32
VBR Unloader Valve Exploded View . . . . . . . . . . 34
Wiring Diagram 1 . . . . . . . . . . . . . . . . . . . . . . . . . 36
Wiring Diagram 2 . . . . . . . . . . . . . . . . . . . . . . . . . 37
Wiring Diagram 3 . . . . . . . . . . . . . . . . . . . . . . . . . 38
Wiring Diagram 4 . . . . . . . . . . . . . . . . . . . . . . . . . 39
Wiring Diagram 5 . . . . . . . . . . . . . . . . . . . . . . . . . 40
Wiring Diagram 6 . . . . . . . . . . . . . . . . . . . . . . . . . 41
Wiring Diagram 7 . . . . . . . . . . . . . . . . . . . . . . . . . 42
Wiring Diagram 8 . . . . . . . . . . . . . . . . . . . . . . . . . 43
Wiring Diagram 9 . . . . . . . . . . . . . . . . . . . . . . . . . 44
Wiring Diagram 10 . . . . . . . . . . . . . . . . . . . . . . . . 45
Wiring Diagram 11 . . . . . . . . . . . . . . . . . . . . . . . . 46
Wiring Diagram 12 . . . . . . . . . . . . . . . . . . . . . . . . 47
Hotsy 1700 Operator’s Manual 8.914-380.0 - W

4
How To Use This Manual
This manual contains the following sections:
• How to Use This Manual
•Safety
• Operations
• Maintenance
The HOW TO USE THIS MANUAL section will tell you
how to find important information for ordering correct
repair parts.
Parts may be ordered from authorized dealers. When
placing an order for parts, the machine model and
machine serial number are important. Refer to the
MACHINE DATA box which is filled out during the
installation of your machine. The MACHINE DATA box
is located on the inside of the front cover of this manual.
The model and serial numbers will be found on a decal
attached to the pressure washer. You should record
both serial number and date of purchase and keep in a
safe place for future reference.
The SAFETY section contains important information
regarding hazardous or unsafe practices of the
machine. Levels of hazards are identified that could
result in product damage, personal injury, or severe
injury resulting in death.
The OPERATIONS section is to familiarize the operator
with the operation and function of the machine.
The MAINTENANCE section contains preventive
maintenance information to keep the machine and its
components in good working condition. They are listed
in this general order:
• Storage
• Maintenance
• Troubleshooting
The PARTS LIST section contains assembled parts
illustrations and corresponding parts list. The parts lists
include a number of columns of information:
•REF – column refers to the reference number
on the parts illustration.
•PART NO. – column lists the part number for
the part.
•QTY – column lists the quantity of the part used
in that area of the machine.
•DESCRIPTION – column is a brief description
of the part.
•NOTES – column for information not noted by
the other columns.
NOTE: If a service or option kit is installed on your
machine, be sure to keep the KIT INSTRUCTIONS
which came with the kit. It contains replacement parts
numbers needed for ordering future parts.
NOTE: The manual part number is located on the
lower right corner of the front cover.
Model:
Date of Purchase:
Serial Number:
Dealer:
Address:
Phone Number:
Sales Representative:
Hotsy 1700 Operator’s Manual 8.914-380.0 - W

5
Safety
Introduction & Safety Information
Thank you for purchasing this Pressure Washer.
We reserve the right to make changes at any time
without incurring any obligation.
Owner/User Responsibility
The owner and/or user must have an understanding of
the manufacturer’s operating instructions and warnings
before using this pressure washer. Warning information
should be emphasized and understood. If the operator
is not fluent in English, the manufacturer’s instructions
and warnings shall be read to and discussed with the
operator in the operator’s native language by the
purchaser/owner, making sure that the operator
comprehends its contents.
Owner and/or user must study and maintain for future
reference the manufacturers’ instructions.
The operator must know how to stop the machine
quickly and understand the operation of all controls.
Never permit anyone to operate the engine without
proper instructions.
SAVE THESE INSTRUCTIONS
This manual should be considered a permanent
part of the machine and should remain with it if
machine is resold.
When ordering parts, please specify model and
serial number. Use only identical replacement
parts.This machine is to be used only by trained
operators.
IMPORTANT SAFETY INFORMATION
WARNING: To reduce the risk of
injury, read operating instructions
carefully before using.
1.Read the owner's manual thor-
oughly. Failure to follow instructions
could cause malfunction of the
machine and result in death, serious
bodily injury and/or property damage.
2.Know how to stop the machine and
bleed pressure quickly. Be thor-
oughly familiar with the controls.
3. Stay alert — watch what you are doing.
4. All installations must comply with local codes.
Contact your electrician, plumber, utility company
or the selling dealer for specific details. If your
machine is rated 250 volts or less, single phase, a
a ground fault circuit interrupter (GFCI) will be
provided. If rated more than 250 volts, or more
than single phase this product should only be
connected to a power supply receptacle protected
by a GFCI.
DANGER: Improper connection of the equipment-
grounding conductor can result in a risk of electro-
cution. Check with a qualified electrician or service
personnel if you are in doubt as to whether the
outlet is properly grounded. Do not modify the plug
provided with the product - if it will not fit the outlet,
have a proper outlet installed by a qualified electri-
cian. Do not use any type of adapter with this
product
WARNING: Must be plugged into properly wired
three hole grounded outlet that accommodates
plug on power cord. Failure to comply could result
in electrical shock.
DANGER: Keep wand, hose, and
water spray away from electric
wiring or fatal electric shock may
result.
5.To protect the operator from elec-
trical shock, the machine must be
electrically grounded.
It is the responsibility of the owner to
connect this machine to a UL
grounded receptacle of proper
voltage and amperage ratings. Do not spray water
on or near electrical components. Do not touch
machine with wet hands or while standing in water.
Always disconnect power before servicing.
WARNING: Flammable liquids can
create fumes which can ignite,
causing property damage or
severe injury.
WARNING: Risk of explosion. Do
not spray flammable liquids.
6. Do not allow acids, caustic or
abrasive fluids to pass through the
pump.
7. Never run pump dry or leave spray gun closed
longer than 1-2 minutes.
WARNING
READ OPERATOR’S
MANUAL THOROUGHLY
PRIOR TO USE.
OPERATIONS
SAFETY
MAINTENANCE
DANGER
KEEP WATER
SPRAY AWAY FROM
ELECTRICAL WIRING.
WARNING
RISK OF EXPLOSION:
OPERATE ONLY WHERE
OPEN FLAME OR TORCH
IS PERMITTED
Hotsy 1700 Operator’s Manual 8.914-380.0 - W

6
Safety
8. Keep operating area clear of all persons.
WARNING: High pressure spray
can cause paint chips or other
particles to become airborne and
fly at high speeds. To avoid
personal injury, eye, hand Eye,
hand, and foot protection must be
worn when using this equipment.
9. Always wear properly rated eye
protection such as safety goggles
or face shield while spraying. (Safety glasses do
not provide full protections).
WARNING: Grip cleaning wand
securely with both hands before
starting. Failure to do this could
result in injury from a whipping
wand.
WARNING: High pressure
developed by these machines will
cause personal injury or
equipment damage. Keep clear of
nozzle. Use caution when oper-
ating. Do not direct discharge
stream at people or animals, or
severe injury or death will result.
10. To reduce the risk of injury, close supervision is
necessary when a machine is used near children.
Do not allow children to operate the pressure
washer. This machine must be attended during
operation.
11. Never make adjustments on machine while in
operation.
12. Be certain all quick coupler fittings are secured
before using pressure washer.
WARNING: Protect machine from
freezing.
13. To keep machine in best
operating conditions, it is
important you protect machine
from freezing. Failure to protect
machine from freezing could
cause malfunction of the
machine and result in death,
serious bodily injury, and/or
property damage. Follow storage instructions
specified in this manual.
14. Inlet water must be clean fresh water and no hotter
then 90°F.
15. Manufacturer will not be liable for any changes
made to our standard machines or any compo-
nents not purchased from us.
16. The best insurance against an accident is precau-
tion and knowledge of the machine.
WARNING: Be extremely careful
when using a ladder, scaffolding or
any other relatively unstable
location. The cleaning area should
have adequate slopes and
drainage to reduce the possibility
of a fall due to slippery surfaces.
17. Do not overreach or stand on unstable support.
Keep good footing and balance at all times.
18. Do not operate this machine when fatigued or
under the influence of alcohol, prescription
medications, or drugs.
WARNING: If connection is made
to a potable water system, the
system shall be protected against
back flow.
WARNING: Do not spray machine
or any people, animals or elec-
trical parts.
Follow the maintenance instructions
specified in the manual.
Hotsy 1700 Operator’s Manual 8.914-380.0 - W
WARNING
TRIGGER GUN KICKS
BACK — HOLD WITH
BOTH HANDS
WARNING
RISK OF INJECTION
OR SEVERE INJURY
TO PERSONS. KEEP
CLEAR OF NOZZLE.
WARNING
PROCTECT FROM
FREEZING
WARNING
RISK OF INJURY
FROM FALLS WHEN
USING LADDER.
WARNING
PROTECTIVE
EYE WEAR AND
CLOTHING
MUST BE WORN.
WARNING
NOT SUITABLE
FOR CONNECTION
TO THE POTABLE
WATER MAINS.
WARNING
DO NOT SPRAY
MACHINE OR ANY
PEOPLE, ANIMALS OR
ELECTRICAL PARTS.

7
Technical Specifications
Model #
Pump
Volume @
Pump
Head
Pump
Pressure
at Pump
Head
Machine
Voltage
Total
Machine
Amperage
Machine
Weight Shipping Weight Machine Dimensions
1710 2.75 GPM 1000 PSI 120VAC/
60Hz/1Ph 20 Amps 154 Lbs 200 Lbs L 30.25” X W 21” X H 15”
1720 3.9 GPM 2000 PSI 230VAC/
60Hz/1Ph 28 Amps 229 Lbs 275 Lbs L 30.25” X W 21” X H 15”
1722 3.9 GPM 2000 PSI 208VAC/
60Hz/1Ph 30 Amps 229 Lbs 250 Lbs L 30.25” X W 21” X H 15”
1723 3.9 GPM 2000 PSI 208VAC/
60Hz/3Ph 16 Amps 229 Lbs 250 Lbs L 30.25” X W 21” X H 15”
1724 3.9 GPM 2000 PSI 230VAC/
60Hz/3Ph 14.4 Amps 229 Lbs 250 Lbs L 30.25” X W 21” X H 15”
1725 3.9 GPM 2000 PSI 460VAC/
60Hz/3Ph 7.2 Amps 229 Lbs 250 Lbs L 30.25” X W 21” X H 15”
1743 4.76 GPM 3000 PSI 208VAC/
60Hz/3Ph 31.3 Amps 257 Lbs 302 Lbs L 30.25” X W 21” X H 15”
1744 4.76 GPM 3000 PSI 230VAC/
60Hz/3Ph 26.8 Amps 257 Lbs 300 Lbs L 30.25” X W 21” X H 15”
1745 4.76 GPM 3000 PSI 460VAC/
60Hz/3Ph 13.5 Amps 257 Lbs 315 Lbs L 30.25” X W 21” X H 15”
1753 5.93 GPM 2500 PSI 208VAC/
60Hz/3Ph 31.3 Amps 257 Lbs 320 Lbs L 30.25” X W 21” X H 15”
1754 5.93 GPM 2500 PSI 230VAC/
60Hz/3Ph 26.8 Amps 257 Lbs 310 Lbs L 30.25” X W 21” X H 15”
1755 5.93 GPM 2500 PSI 460VAC/
60Hz/3Ph 13.5 Amps 257 Lbs 310 Lbs L 30.25” X W 21” X H 15”
Hotsy 1700 Operator’s Manual 8.914-380.0 - W

8
Operations
Pre-Operation Check
• Read machine safety warnings
• Pump oil (SAE 10W-40 (non-foaming oil)
• Cold water supply (1gpm over machines rating-
5/8" 20 psi)
• Proper power supply and circuit protection
• Hose, wand, nozzles (nozzle sizes per serial
plate)
• Water filter (intact, non restrictive)
• Read operation instructions
• This machine must be protected from the
elements/freezing.
Set-up Procedures
This machine is intended for indoor use. Machine
must be stored indoors when not in use.
1. Attach a minimum 5/8" garden hose to inlet
connector. Minimum flow should be 1 gpm over the
flow rate of the pressure washer.
2. Attach high pressure hose to discharge nipple
using quick coupler. Lock coupler securely into
place by pulling back coupler collar and inserting it
onto dis-charge nipple, then pushing collar forward
to lock in place.
3. Attach wand to spray gun using Teflon tape on
threads to prevent leakage.
4. Attach connector on discharge hose to spray gun
using Teflon tape on threads.
5. Remove oil plug on top of pressure washer pump
and replace with dipstick supplied. (This may be
installed from the factory.
6. Check oil level on oil dipstick on top of pump. Oil
should be visible one half way up sight glass (10W-
40 non-foaming).
Operating Instructions
1. Read safety and preventative maintenance instruc-
tions before starting machine.
2. Turn on water at faucet and pull trigger on spray
gun allowing water to flow until all air has
discharged from system. Check for water leaks;
tighten as needed.
3. Push the pump switch on.
4. Turn the variable pressure control handle
clockwise to increase pressure.
5. To apply detergent read “How to Use The
Detergent Injector.”
Shut Down Procedures
1. Rinse with clean water to remove any soap
residue, by placing detergent hose into fresh water
bucket and operating injector as described below.
2. Release the trigger on the spray gun. Turn the
switch off if the machine is going to be left unat-
tended. (Time delay only).
3. Turn off water supply.
4. Open spray gun to relieve remaining pressure.
5. Remove water supply hose.
Selection of high or low pressure is accomplished by
turning the handle.
NOTE: High pressure nozzle must be inserted at end
of wand to obtain high pressure. to apply soap read
operator’s manual.
Hotsy 1700 Operator’s Manual 8.914-380.0 - W
Brass Soap
Nozzle
Variable Pressure
Wand (VP)
High
Pressure
Nozzle
Variable Pressure
Control Handle
Trigger

9
Operations
Component Identification
Trigger
Spra
y
Gun
Quick
Coupler
Variable
Pressure
Wand
High Pressure
Hose
Detergent
Injector
On/Off
Switch
Detergent
Pick-up Tube
Hose
Coupler
Discharge
Nipple
High Pressure
Nozzle
Hotsy 1700 Operator’s Manual 8.914-380.0 - W

10
Operations
How To Use The Detergent Injector
WARNING: Some detergents may
be harmful if inhaled or ingested,
causing severe nausea, fainting
or poisoning. The harmful
elements may cause property
damage or severe injury.
The machine can siphon and mix
detergents with the use of the
detergent injector kit.
1. Start machine as outlined in Operating
Instructions.
2. Place detergent pick-up tube into container of
detergent solution.
3. Turn the pressure control handle on the variable
pressure wand counterclockwise to low pressure.
4. Open trigger on spray gun. Water detergent ratio is
approximately 15 to 1.
NOTE: Soap will not siphon under high pressure.
5. When you finish with the detergents, rinse by
simply turning the variable pressure control handle
clockwise to high pressure.
6. After use, place siphon strainer into container of
clear water and follow steps 3 and 4 to avoid
detergent deposit build-up.
Hotsy 1700 Operator’s Manual 8.914-380.0 - W
WARNING
SOME DETERGENTS
MAY BE HARMFUL
IF INHALED OR
INGESTED
Quick Coupler
Soap Nozzle
Variable
Pressure
Wand
High Pressure
Nozzle
Discharge
Nipple
Detergent Injector
Qui
ck Coupler
Trigger
Detergent
Pickup Tube
Spray
Gun
High Pressure
Hose
On/Off
Switch
Pressure Control
Handle
Detergent Bucket
(Not Included)

11
Operations & Maintenance
General Washing Techniques
1. Hold spray nozzle a foot or so from the surface
being cleaned. Spray at an angle to get under the
material and lift it off.
2. When washing large objects, use detergent injector
to apply detergent. Start washing from the bottom
and work up. Allow the detergent to set a few
minutes. After washing, rinse from the top down.
3. Cleaning heavy dirt or material away with a hard
stream of clear water is recommended before
using a cleaning agent.
Maintenance
Pump Lubrication
The pump on your 1700 Series pressure washer is a
triplex ceramic plunger pump. As the plungers move
back, water flows through the inlet valve into the
manifold chamber. Then, when the plungers move
forward, the inlet valves close and the discharge valves
open to produce discharge pressure.
Use only SAE 10W-40 weight (non-foaming oil);
change oil after first 50 hours of use. Thereafter,
change oil every year or at 500 hour intervals. Oil level
should be checked through the use of the dipstick
found on top of the pump, or half way up on the oil
gauge window. Oil should be maintained at that level.
Unloader Valves
The unloader valve is connected directly to the
discharge port of the pump. Its purpose is to allow recir-
culation back into the pump inlet when the trigger on
the spray gun is closed.
Nozzles
Each machine is equipped with four spray nozzles
depending on the flow and pressure of that particular
model. Spray nozzles vary in bore size and angle of
spray. When ordering replacement nozzles, please
specify size and angle of nozzle. Nozzle size for each
machine is located on the serial plate.
Storage
CAUTION: Always store your pressure washer in a
location where the temperature will not fall below
32°F (0°C). The pump in this machine is suscep-
tible to permanent damage if frozen.
FREEZE DAMAGE IS NOT COVERED
BY WARRANTY.
Winterizing Procedure
Use the following cold weather procedures whenever
the washer must be stored or operated outdoors under
freezing conditions.
During winter months, when the temperature drops
below 32°F, protecting your machine against freezing
is necessary. A blowout valve is available which can be
screwed on in place of the garden hose to blow water
out of the system. When compressed air is not avail-
able or impractical, siphon a small amount of antifreeze
into the machine and siphon a 50/50 mixture of anti-
freeze into the pump. Run the pump dry for a few sec-
onds and disconnect all hoses to allow water to drain.
Low Pressure Diagnosis
Refer to Troubleshooting Chart for low pressure. If, by
referring to the chart, the trouble is found to be either
the unloader or the pump, your next step is to
determine whether in fact the unloader or the pump is
the problem. This can be done by eliminating the
unloader from the system and attaching the discharge
hose directly to the pump. If high pressure is developed
in this manner the pump is good, and the unloader
needs to be repaired or replaced.
CAUTION: When using this procedure to test
components, keep the spray gun open at all times.
Hotsy 1700 Operator’s Manual 8.914-380.0 - W

12
Maintenance
Multi-Room Installation
280701 (30-640)
Wall Mount
280704 (28-280704)
Kit, Hose Reel w/
Bracket
Hotsy 1700 Operator’s Manual 8.914-380.0 - W

13
Maintenance
Troubleshooting Guide
PROBLEM POSSIBLE CAUSE SOLUTION
LOW OPERATING
PRESSURE
Faulty pressure gauge Install new gauge.
Insufficient water supply Use larger supply hose; clean filter at water
inlet.
Old, worn or incorrect spray nozzle Match nozzle number to machine and/or
replace with new nozzle.
Belt slippage Tighten or replace; use correct belt.
Plumbing or hose leak Check plumbing system for leaks. Re-tape
leaks with teflon tape.
Faulty or mis-adjusted unloader valve
(Where applicable)
Call local dealer. Tampering with the factory
setting may cause personal injury and/ or
property damage, and will void the manufac-
turer's warranty.
Worn packing in pump Install new packing kit.
Fouled or dirty inlet ordischarge valves in
pump Clean inlet and discharge valves.
Worn inlet or discharge valves Replace with valve kit.
Obstruction in spray nozzle Remove obstruction.
Leaking pressure control valve (where
applicable) Rebuild or replace as needed.
Insufficient power supply Check voltage.
FLUCTUATING
PRESSURE
Valves worn Check and replace if necessary.
Blockage in valve Check and clean out if necessary.
Pump sucking air Check water supply and
suction line for air seepage at joints.
Worn piston packing Check and replace if necessary.
PRESSURE LOW
AFTER PERIOD OF
NORMAL USE
Nozzle worn Check and replace if necessary.
Inlet or discharge valves worn Check and replace if necessary.
Inlet or discharge valves blocked Check and clean if necessary.
Unloader valve seat worn Check and replace if necessary.
PUMP NOISY Air in suction line Check water supply and connections on
suction line.
Broken or weak inlet or discharge valve
springs Check and replace if necessary.
Foreign matter in valves Check and clean if necessary.
Worn bearings Check and replace if necessary.
Excessive temperature of liquid Reduce to below 75° C (160°F).
PRESENCE OF
WATER IN PUMP OIL
Oil seal worn Check and replace if necessary.
High humidity in air Check and change oil twice as often.
Piston packing worn Check and replace if necessary.
MOTOR STRAINS
UNDER LOAD
(CONTINUED
ON NEXT PAGE)
Faulty motor Send to nearest Baldor repair center.
Incorrect spray nozzle Install proper nozzle size (see serial plate for
proper size).
Obstruction in spray nozzle Remove obstruction.
Hotsy 1700 Operator’s Manual 8.914-380.0 - W

14
Maintenance
PROBLEM POSSIBLE CAUSE SOLUTION
MOTORSTRAINSUNDER
LOAD (CONTINUED
FROM PREVIOUS PAGE)
Mis-adjusted unloader valve Call local dealer.
Pump low or out of oil Check oil level.
OIL SQUIRTS OUT OF
OIL CAP ON PUMP Pump over filled with oil Maintain oil level halfway up on the sight glass at
rear of pump or at top of notch on dipstick (where
applicable).
PUMP RUNNING
NORMALLY BUT
PRESSURE OUTPUT
LOW
Pump sucking air Check water supply and possibility of air seepage.
Valves sticking Check and clean or replace if necessary.
Unloader valve seat faulty Check and replace if necessary.
Nozzle incorrectly sized Check and replace if necessary
(See serial plate for proper size).
Worn piston packing Check and replace if necessary.
WATER DRIPPING FROM
UNDER PUMP
Piston packing worn Check and replace if necessary.
O-Ring plunger retainer worn Check and replace if necessary.
Cracked piston Check and replace if necessary.
OIL DRIPPING Oil seal worn Check and replace if necessary.
EXCESSIVE VIBRATION
IN DELIVERY LINE Irregular functioning of the valves Check and replace if necessary.
SYSTEM
WILL NOT
START
Motor overload tripped Check and reset.
Pressure switch faulty (time delay only) Check, clean or replace.
Timer faulty (time delay only) Check and replace.
MOTOR “HUMS” BUT
DOES NOT TURN Electric motor single phasing Check for blown fuse or loose power line.
SYSTEM WILL NOT STOP Pressure switch faulty Check clean or replace.
Timer faulty Check and replace.
SYSTEM STOPS AFTER
APPROXIMATELY FOUR
(4) SECONDS AND THEN
RESTARTS
Faulty pressure switch Check and replace.
Leak at discharge line Check for leak at hose and spray gun.
MACHINE WILL NOT
START WHEN SPRAY
GUN TRIGGER IS
PULLED
Loss of electrical power Check circuit breaker.
Faulty on/off switch, pressure switch,
timer or magnetic contactor Test and replace as needed.
MACHINE DOES NOT
TURN OFF AFTER FOUR
(4) SECONDS WHEN
SPRAY GUN IS
RELEASED
Test power control switch and solid
state timer faulty Replace the defective component.
Hotsy 1700 Operator’s Manual 8.914-380.0 - W

15
Maintenance
Preventative Maintenance
This pressure washer was produced with the best available materials and quality craftsmanship. However, you as
the owner, have certain responsibilities for the correct care of the equipment. Attention to regular preventative
maintenance procedures will assist in preserving the performance of your equipment. Contact your Hotsy dealer for
maintenance. Regular preventative maintenance will add many hours to the life of your pressure washer. Perform
maintenance more often under severe conditions.
Oil Change Record
Check pump oil level before first use of your new Power Washer. Change pump oil after first 50 hours and every
year or 500 hours thereafter. Use SAE 10W-40 non-foaming oil.
IMPORTANT
If the pressure washer demonstrates other symptoms or the
corrective actions listed do not correct the problem, contact the
local authorized Hotsy Service Center. The Hotsy Service
Center can be identified by visiting www.hotsy.com.
Maintenance Schedule
Pump Oil (Non-
foaming)
SAE 10W-40
Inspect Oil level daily
Change After first 50 hours, then every 500 hours or annually
Replace High Pressure Nozzle Every 6 months
Replace Quick Connects Annually
Clean Water Screen/Filter Weekly
Replace HP Hose Annually
D a t e O i l C h a n g e d
Month/Day/Year
Estimated Operating
Hours Since Last Oil
Change
D a t e O i l C h a n g e d
Month/Day/Year
Estimated Operating
Hours Since Last Oil
Change
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Notes:
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PARTS
HOTSY 1700
Parts
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Exploded View - Left Side
89143800-1
8
84 10
84
97
109
95
11 87
92
99
84
60
59
13
96
14
83
56
Time Delay
Option
Auto Start
Option
99
95
84
4
886 84
89
10 87
93
5
7
6
57
84
92
3
20
2
21
9
19
94
56
27
16
82
22
18
15
23
All Models
Time Delay
Shutdown Option
"100","1753", "1754",
and "1755" only
98
100
75
64
65
1
63
62
24
1700 w/Time
Delay Option
Reversed View
82
82
26
1
17
49
25
24
Auto Start
Option
Reversed View of
Electrical Panel
Components
Auto
Start
Option
92
102
17
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19Hotsy 1700 Operator’s Manual 8.914-380.0 - W
Exploded View - Right Side
11
12
14
13
59 60
56
83
28
54
106
46
70
73 74
44
48
47
45
50
80
43
58
68
77
61
29
101
79
80
91
85
90
31
51
20
53
80
40 41
42
81
90
72
107
71
55
78
35
34
36 37
50
33
66
39
32
38
30
67
52 69
96
Auto Start &
Time Delay
Options
103
104
105
88
106
108
108
Location of 1st
serial plate
Location of 2nd
serial plate inside
frame

20
Exploded View Parts List
REF PART NO. QTY DESCRIPTION NOTES
1 - - UNLOADER, SEE SPECIFICATIONS PAGES
2 - - PUMP, SEE SPECIFICATIONS PAGES
3 - - MOTOR, SEE SPECIFICATIONS PAGES
4 - - OVERLOAD, SEE SPECIFICATIONS PAGES
5 - - TRANSFORMER, SEE SPECIFICATIONS PAGES
6 - - FUSE, SEE SPECIFICATIONS PAGES
7 - - FUSE, SEE SPECIFICATIONS PAGES
8 - - CONTACTOR, SEE SPECIFICATIONS PAGES
9 9.802-259.0 18" HOSE, 1/2” PUSH ON
10 9.802-457.0 4” DIN RAIL, 35 MM
- - 6” DIN RAIL, 35 MM (TIME DELAY OPTION)
11 9.802-476.0 1 BOX, PLASTIC, 10" X 8" X 6" W/LID
(ALL MODELS EXCEPT 1710)
- 9.802-475.0 1 BOX, PLASTIC, 8" X 8" X 4" W/LID (ONLY 1710)
12 9.803-038.0 1 BRACKET, SUPPORT FOR ELEC BOX
13 9.802-518.0 1 STRAIN RELIEF, 3/4” LQ TITE (1710,1720, 1722, 1723, 1724,
1725, 1745, 1755)
- 9.802-526.0 1 LOCKNUT, 3/4” CONDUIT (1720,1722, 1723, 1724, 1725,
1745, 1753, 1755) NOT SHOWN
- 9.802-521.0 1 STRAIN RELIEF, 3/4” (1743, 1744, 1753, 1754)
- 9.802-526.0 1 LOCKNUT, 3/4” (1743, 1744, 1753, 1754) NOT SHOWN
14 9.802-515.0 1 STRAIN RELIEF, STRT, LQ TITE, MED
- 9.802-524.0 1 LOCKNUT, 1/2” CONDUIT NOT SHOWN
15 8.918-424.0 - HOSE, 3/8” X 25", 2 WIRE PRESSURE LOOP
16 9.803-670.0 1 PUMP PROTECTOR, 1/2” PTP,190°
17 9.802-042.0 1 ELBOW, 1/2” JIC, 3/8” FEM, 90°
18 9.802-039.0 1 ELBOW, 1/2” JIC, 3/8”, 90°
19 9.802-779.0 4 NUT, 3/8”, ESNA
- 9.802-776.0 4 NUT, 5/16”, ESNA (ONLY 1710)
- 9.802-777.0 4 NUT, 5/16”, ESNA (FOR 1710 SS OPTION)
- 9.802-780.0 4 NUT, 3/8”, ESNA SS (SS OPTION)
20 9.802-807.0 8 WASHER, 3/8”, SAE, FLAT
- 9.802-808.0 8 WASHER, 3/8”, SAE FLAT (SS OPTION)
- 8.718-980.0 8 WASHER, 5/16” SAE FLAT (ONLY 1710)
- 9.802-805.0 8 WASHER, 5/16” SAE FLAT (SS OPTION FOR 1710)
21 8.706-881.0 1 NIPPLE, 3/4” PIPE X 1/2” PIPE BRASS (1753, 1754, 1755)
- 8.706-790.0 1 NIPPLE, 1/2” CLOSE (1710,1720, 1722, 1723, 1724,1725,
1743, 1744, 1745)
22 8.706-844.0 1 TEE, 1/2” FEMALE, PIPE
23 9.802-128.0 1 NIPPLE, 1/2” JIC X 1/2” MPT PIPE
Hotsy 1700 Operator’s Manual 8.914-380.0 - W