pronovost PXPL-86 Product manual

Snowblowers
Models
PXPL-86 PXPL-92
PXPL-86-92 PXPL-92-98
No. C2114 09/2009
OPERATOR'S / PARTS
MANUAL

Copyright © Les Machineries Pronovost Inc., 2009
All rights reserved.
Printed in Canada.

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TABLE OF CONTENTS
Section Item Page
1 Introduction .............................................................................................................................5
2 Safety ......................................................................................................................................6
General Safety ..............................................................................................................6
Safety in Operation ...................................................................................................... 6
Safety with Maintenance.............................................................................................. 7
Safety in Transport ....................................................................................................... 7
Safety in Storage .......................................................................................................... 7
3 Decals ......................................................................................................................................8
Safety Decals................................................................................................................8
Maintenance Decals ................................................................................................... 10
4 Assembly ...............................................................................................................................13
General assembly ....................................................................................................... 13
5 Start-up...................................................................................................................................14
Basic Start-up Procedures.......................................................................................... 14
Snowbloweradjustment.............................................................................................. 15
X-PRO blade adjustment ............................................................................................ 16
6 Maintenance..........................................................................................................................17
7 Storage ...................................................................................................................................19
8 Trouble Shooting ..................................................................................................................20
9 Specifications.........................................................................................................................22
10 Parts List ...............................................................................................................................23
Snowblowers PXPL-86, PXPL-86-92 ...................................................................... 23
Snowblowers PXPL-92, PXPL-92-98 ...................................................................... 27
Chute CST-7486 ......................................................................................................... 31
Semi-industrialChutePSIG-7486 ............................................................................... 33
Snowbloweroptions.................................................................................................... 35
Scraper blade and skid shoes for X-PRO blade ......................................................... 37
P.T.O. Shaft 8202, 8202-1.......................................................................................... 39
P.T.O. Shaft 9225-EG, 9225-1, 9569 ......................................................................... 40
P.T.O. Shaft 9475, 9475-1, 9475-2............................................................................. 41
Gear Box 8251............................................................................................................ 42
Gear Box 9307............................................................................................................ 43
Speed reducer 8348 .................................................................................................... 44
Speed reducer 9575 .................................................................................................... 45
Cylinder25TR08......................................................................................................... 46
Cylinder25JT11.5....................................................................................................... 47
Cylinder25JT15.5....................................................................................................... 48
Hydraulic Motor MLH-250 & MLH-315................................................................... 49
11 Torque Chart.........................................................................................................................50
12 Warranty.................................................................................................................................51

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Figure 1
MODEL: 
SERIAL NO: 
DATE OF PURCHASE: 
INTRODUCTION 1
NOW take a moment to enter the model, serial
number and the date of purchase of your Snowblower
in the space provided.
When ordering parts from your Dealer, please refer to
these numbers for a fast and efficient service. Use
PRONOVOST parts for replacement.
The model and serial numbers are on the name plate
shown on Fig. 1.
Thank you for choosing PRONOVOST. We are
confident this equipment will meet your requirements
in terms of quality, performance and reliability.
This manual was prepared to assist you in the safe
operation of your new Snowblower. It contains
important information which will help you achieve
excellent returns with your Snowblower for years to
come.
Please read this manual completely before operating
your Snowblower and keep it for future reference.
Before starting the machine, you or any other person
who will be operating the Snowblower must
familiarize yourself with the safety recommendations
and the operating instructions. Please read carefully
and be sure to understand and follow all
recommendations and procedures.
In this manual, the right and left sides are identified as
shown on Figure 1.
If you require additional information on your
Snowblower, please contact your PRONOVOST
Dealer.
CONGRATULATIONS!
Right
Left

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WHEN YOU SEE THIS SYMBOL
SAFETY
2
ATTENTION!
BE ALERT
YOUR SAFETY IS INVOLVED
This symbol «SAFETY ALERT» is used in this manual and
on the safety decals on the Snowblower. It warns you of the
possibility of danger. Carefully read, understand and follow
all safety recommendations before operating the
Snowblower.
1) Careful operation is the best assurance against acci-
dents. Carefully read this manual and follow all
recommendations before operating your Snowblower.
It is the owner’s responsibility to make sure that anyone
who will operate the Snowblower will read this manual
before operating the equipment.
2) Familiarize yourself with all controls and always be
ready to stop the Snowblower quickly in case of
emergency.
3) Never let a child operate the Snowblower.
4) Do not modify the Snowblower. Any non authorized
modification may affect the efficiency and/or safety of
the equipment and will automatically void the warranty.
5) Never operate the Snowblower with defective parts or if
damaged in any way. Have it repaired before operating.
6) Make sure all fasteners are in place and properly
secured or tightened. Refer to torque chart on page 50.
7) Avoid wearing loose fitting clothing when working with
the Snowblower. These could get entangled in moving
parts of the equipment and cause accidents.
GENERAL SAFETY
8) Prolonged exposure to noise may hamper hearing.
Protect yourself by wearing adequate protection
devices.
9) Hydraulic fluids under pressure can damage your skin.
Do not use your hands to locate a leak.
10) Before the beginning of the snow season, inspect all
areas where the Snowblower will be used and remove
any object which may cause an accident and/or damage
the equipment.
11) Never operate your Snowblower in poor visibility or
without proper lighting conditions.
SAFETY IN OPERATION
1) Be sure there are no obstructions around the equipment
and that no one stands near the equipment when in
operation.
2) Do not operate an engine in a confined or non ventilated
area.
3) Do not perform any adjustments, cleaning, maintenance
or repairs with the engine running. The engine must be
stopped and the P.T.O. disengaged. Preferably remove
the key from the ignition.
4) Wear adequate clothing when working in cold or windy
conditions.
5) Adjust skid shoes for proper ground clearance of
scraper blade, especially in rough terrain or soft ground
conditions.
6) Before operating, make sure the P.T.O. is properly
installed and secured.
7) Before starting-up the Snowblower, make sure the auger
and drum areas are free of ice.
8) Put P.T.O. control in neutral position before starting
engine.
9) Keep hands, feet and clothing away from moving parts
of the Snowblower. Stay away from the discharge chute.

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SAFETY (cont'd)
2
10) Before unplugging the chute, always disengage the
P.T.O., stop the engine and relieve all hydraulic pressu-
res.
11) Do not operate in excessive inclined conditions. Be
careful when turning in slopes.
12) Never operate your Snowblower with missing guards or
without protective devices in place.
13) Do not operate your Snowblower near buildings,
windows or other vehicules without prior and proper
adjustment of the chute deflector.
14) Never aim discharge chute towards people or animals.
This may cause serious injuries.
15) Always reduce operating speed in slippery conditions.
16) Be careful when backing-up, make sure you have good
visibility.
17) Always be on the lookout for objects which may enter
theSnowblower.
18) If undue vibrations are felt, disengage the P.T.O., stop
the motor and look for the cause of the vibration.
Vibration is usually the indication of a problem.
19) When you activate the X-PRO BLADE make sure
nobody is behind the snowblower, because this person
could be hit in the face by the proximity indicator (Fig.
12 page 10).
20) At the end of the operation, disengage the P.T.O., lower
the Snowblower, put transmission in neutral, apply
parking brake, stop engine and remove the key from the
ignition.
SAFETY WITH MAINTENANCE
1) Perform the Snowblower maintenance according to
recommendations contained in this manual.
2) Stop engine and relieve all hydraulic pressures before
doing inspection, maintenance or repairs.
3) Never perform any work under the Snowblower while it
is supported only by the tractor's hydraulic system. It
must be completely supported by wooden blocks or
other safe means.
SAFETY IN TRANSPORT
1) On public roads, use proper safety lights and check
local regulations.
2) Be alert while driving on the road. Never carry
passengers.
3) Always disengage P.T.O. while moving from one area
of work to another.
4) It is recommended to use both brake pedals
simultaneously for better control.
5) The recommended road speed should be such as to
maintain full control over steering and braking.
6) Be careful while backing up, make sure you have good
visibility.
SAFETY IN STORAGE
1) Provide adequate supports to prevent any accidental
overturning of the Snowblower.
2) Do not let children play in the area where the
snowblower is stored.
3) Lower X-PRO blade on the ground.

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DECALS
SAFETY DECALS
The safety decals are affixed wherever special safety
precautions are indicated. Locate them on the machine
and read them carefully. If a decal is damaged, lost or
illegible, install a new one. The following photos
indicate where each one must be installed.
3
Figure 2
Decal A Part no.: A102
Figure 4
Decal B Part no.: A101
Figure 3
Figure 5
A
BB

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DECALS (cont'd)
3
Figure 9
Decal E Part no.: A108
Figure6
D
Figure7
Decal C Part no.: 190-11641
If your snowblower is equipped with a reduction gear
box, the decal C will be the one shown below.
Figure8
Decal C Part no.: 190-11651
Decal E in Fig. 9 is located directly on the P.T.O.
shaft. It is not visible when the safety shield is in place.
It must never be visible when you operate the
equipment.
C

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DECALS (cont'd)
3
Figure 10
Decal F Part no.: A 109
Figure 11
F
Figure12
Decal G Part no.: A103
G
Figure13
H
Figure15
Figure14
Decal H Pièceno.: 190-10991
H

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DECALS (cont'd)
3
Figure17
Figure16
Decal J Part no.: 190-06651
J
Figure18
Figure19
Decal K Part no.: 190-07611
KFigure20
Decal L Part no.: 190-02651

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DECALS (cont'd)
3
MAINTENANCE DECALS
The maintenance decals indicate the points requiring
lubrication. Refer to maintenance section for more
details.
Figure27
Figure23 Part no.: A 106
Figure25
Decal M Part no.: 190-11581
N
Figure21
Figure22 Part no.: A 105
Figure24
Decal M Part no.: 190-11591
Figure26
Decal N Part no.: 190-11591
LM

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ASSEMBLY
ASSEMBLY
1) The Snowblower is shipped partly assembled.
2) Install 3-point system according to the model of
your Snowblower. (See section 10 for parts
numbers). Use the holes most convenient to the
type of tractor used (Fig. 28).
3) Install P.T.O. shaft with the shear pin end onto the
Snowblower gear box (Fig. 29). Then attach
safety shield support chain as shown (Fig. 30).
WARNING: The telescoping tubes of the drive
shaft must never be allowed to bottom out while
maintaining a minimum overlap of 6 inches.
4) If you install a hydraulic cylinder on the chute
deflector, use model 25TR08 cylinder.
5) When installing chute, grease the groove of the
UHMW slide in order to prevent the corrosion of
the rim of the chute.
6) Install the chute rotation mechanism.
Figure28
Figure29
Figure30
4

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STARTING-UP
START-UP PROCEDURES
1) Check oil level in gearbox. Use S.A.E. W90 gear
box oil.
2) Lubricate all points with a good quality
multipurpose grease.
3) Check chain take-up adjustment. The spring
maintaining the tension must be compressed to a
length between 3" and 3 1/4".
4) Verify for adequate tightness of all fastening
devices. Refer to torque chart on page 50.
5) Adjust skid shoes according to ground conditions
(Fig. 31).
6) Following the installation of the Snowblower on
the tractor, do not forget to lift the storage sup-
port (Fig. 32).
7) Make sure of a 540 RPM input to your
snowblower.
8) Check impeller adjustment. The tip of the blades
should be approximately 1/8" to 3/16" from the
discharge wall of the drum. If necessary, adjust
with the take-up screws provided (Fig. 33).
9) In order to avoid damaging your snowblower,
adjust the speed of descent of your 3 point hitch to
prevent striking the ground too hard.
10) Adjust the hydraulic flow in order to have a good
control of the rotation speed of the chute.
Figure31
Figure32
Figure33
5

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STARTING-UP
5
The PXPL snowblower has been developped to fit
most three point hitch mount farm tractors.The lifting
angle of the three point hitch varies from one model of
tractor to the other, and may affect the operation of the
X-PRO blade. Therefore in order to prevent premature
wear of the skid shoes and the scraper blade and to
keep the sides of the X-PRO blade from scratching
paved surfaces, it is essential that the X-PRO
blade be adjusted in the proper position before
putting it into service.
SNOWBLOWER ADJUSTMENT
1) Place the tractor and blower on a level surface. If
the top link of your tractor's 3 point hitch has
several holes (Fig. 37-K), select the hole to
produce a movement similar to the one shown in
Figure 34. When there is a slope on the
ground, the snowblower's skid shoes must
remain parallel to the ground whether it is
higher or lower than the level of the tractor. It
provides a better scraping on various slopes and
avoid the bottoming of the snowblower on surfa-
ces. You will obtain a working movement as
shown on fig. 35.
Snowblowerandtractoratthesamelevel
Snowblowerhigherthanthetractor
Snowblowerlowerthanthetractor
Figure34
Figure35
OK
OK

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5
STARTING-UP (cont'd)
Fig.37
2) Lift the snowblower a couple inches and verify
that the scraper blade of the snowblower unit is
parallel to the ground. Otherwise, check your
tractor's 3 point hitch.
X-PRO BLADE ADJUSTMENT
1) Lower the X-PRO blade by stretching completely
the blade's cylinders (Fig.37-D). Lower the
snowblower until the scraper blade is a couple
inches above the ground. Make sure the X-PRO
blade is parallel to the ground. If needed, correct
by adjusting the two threaded cylinders (Fig. 37-B)
OK
2) Lower the snowblower until the blade touches the
ground. Adjust the cylinders (Fig. 37-D) to obtain a
height (Fig. 37-A) of approximately 6" for models
PXPL-86 and PXPL-86-92 and of 8" for models
PXPL-92 and PXPL-92-98. Begin the adjustment
by loosening the bolt on the cylinder yoke (Fig. 37-
J). Use a 7/8" key and then make the number of
turns necessary (Fig 37-B) to obtain the required
dimensions(Fig.37-A).
Check that the short skid shoe (of the TIVAR or the
steel shoe for the other models) is parallel to the
groundorslightlyraisedtowardsthetractor (Fig.37-
F).
3) LiftupthesnowblowerandpivottheX-PRObladeas
high as possible. The sides (Fig. 37-E) must rest on
stoppers(Fig.37-C).Areliefvalvehasbeeninstalled
toprotectthemechanism whentheblade restsonthe
stoppers.Foranoptimaladjustment,tightenthevalve
adjustmentscrewtothe maximumandthen unscrew
a half-turn.
Fig.36
Upperlink
Lowerlink

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MAINTENANCE
1) Wipe off all grease fittings with a clean cloth
before adding grease in order to avoid injecting
dirt and sand.
2) Repair or replace damaged grease fittings.
3) Lubricate all grease fittings every 8 hours of
operation.
4) Oil drive chain every 8 hours of operation.
5) Lubricate P.T.O. shaft as indicated below:
Pull out the P.T.O. and lubricate between the two
tubes with low temperature grease. Drive line
tubes must slide easily even in cold weather. Clean
off old hardened grease and apply fresh grease as
needed.
6) Check oil level in gearbox once a month. Adjust
to required oil level as per drawing in Parts List
section.UseSAE80W90oil.
7) Check tension of drive chain every 24 hours of
operation and adjust if necessary.
8) Check for tightness of bearing collars every 48
hours of operation.
9) Change gearbox oil once a year. Adjust to
required oil level as per drawing in Parts List
section.UseSAE80W90oil.
10) Check all nuts and bolts once a year. If necessary
use torque chart on page 50.
11) Standard scraper blades are reversible. Reverse
when one edge is worn out.
12) For the auger drive shaft, always use a grade 5
shear bolt.
13) For the PTO shaft:
AT 540 RPM on a PTO size 80 or 90, the shear
bolt is 12 mm, grade 10.9, part number 9207.
AT 1000 RPM, the shear bolt must be changed
depending on the diameter of the bore of the shear
plateof your drive line:
a) If the bore is 12 mm, you must use a 12 mm,
grade 8.8 bolt that has been reduced to 10 mm at
the point of rupture, part number 9207-375, or
b) If the bore is 10 mm, you must use a 10 mm,
grade 8.8 bolt, part number 8218.
14) UHMW slides do not require lubrification except at
the end of the season in order to prevent corrosion
of steel components that are in contact with the
UHMW material.
If your snowblower is equipped with the optional
speed reducer
15) After 10 working hours, the chain's adjustment (if
applicable) must be checked and every 100
working hours. Please refer to section: Mainte-
nance on Speed Reducer.
16) Check oil level in speed reducer once a month.
Adjust to required oil level as per drawing in Parts
Listsection. Use EnduratexEP-68/220oilor
equivalent.
17) Change the oil of the speed reducer once a
year. Adjust to required oil level as per drawing in
Parts List section. Use Enduratex EP-68/220 oil or
equivalent.
6

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MAINTENANCE ON SPEED REDUCER
It is extremely important that the chain inside the chain
box is tightened. A loose chain will add shocks to the
entire box (chain, sprockets, bearings and spline
couplingstogearbox).
Instructions for speed reducer (with chains)
maintenance
This chain box has double functions.
1) Reduce angles at both ends of PTO in working
position by increasing the input shaft height of 8".
2) Increase PTO capacity by increasing speed from
540 RPM to 1000 RPM.
PTO SHEAR BOLT
Because the PTO is running at 1000 RPM instead of
540 RPM, the shear bolt value must be changed.
AT 540 RPM on a PTO size 80 or 90, the shear bolt
is 12 mm, grade 10.9, part number 9207.
AT 1000 RPM, the shear bolt must be changed
depending on the diameter of the bore of the shear
plateof your drive line:
a) If the bore is 12 mm, you must use a 12 mm, grade
8.8 bolt that has been reduced to 10 mm at the point of
rupture. part number 9207-375, or
b) If the bore is 10 mm, vous devez you must use a 10
mm, grade 8.8 bolt, part number 8218.
ADJUSTMENT OF THE CHAIN'S TENSION
After 10 working hours, the chain’s adjustment must
be checked. In order to do so, verify the backlash
between the input and the output shaft by turning the
input shaft in both directions while the output shaft
remains still. If there is a play of 10° or more, the chain
must then be readjusted as follows:
1) Remove PTO from the chain box.
2) Unscrew the 12 bolts 5/16" dia. (item #22) from
covers (items #7 and #15) around the input shaft
on both sides of the chain box (6 bolts on each
side).
NOTE: Input shaft covers are eccentric with
outside of covers. Therefore by turning input shaft
cover, center to center distance of shafts will be
changed and thus, this will adjust the chain’s
tension.
3) With a hammer and a screw-driver or a chisel,
gently turn both covers in the same direction until
the next hole of the cover is in line with the
threaded hole of the chain box.
IMPORTANT: Make sure that the covers
are turned in the same direction and by the
same number of holes.
Otherwise, both shafts will not be parallel and
serious damages might arise.
4) Verify the backlash between both shafts, as
described above. If the difference is too high,
repeat the operation explained in point 3. If the
backlash is correct, reinstall the bolts and the PTO.
5) Verify the backlash every 100 working hours.
MAINTENANCE ON SPEED REDUCER
1) Check oil level in speed reducer once a month.
Adjust to required oil level as per drawing in Parts
List section. Use Enduratex EP-68/220 oil or
equivalent.
2) Change the oil of the speed reducer once a
year. Adjust to required oil level as per drawing in
Parts List section. Use Enduratex EP-68/220 oil
orequivalent.
6

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STORAGE
1) Store the Snowblower in a cool, dry place.
2) Support the Snowblower with wooden blocks.
3) Keep all piston rods in the retracted position. This
will assure better protection against the elements.
4) Clean your Snowblower.
5) Thoroughly inspect all parts of the Snowblower.
Replace or repair worn or defective parts.
6) Touch-up or repaint if necessary.
7) Lubricate all points before storage.
7

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TROUBLESHOOTING
- Follow lubrication
recommendations.
- Replace defective U-joints.
- Make sure the snowblower inlet
face is perpendicular to the
ground and if possible readjust
3-point hitch in order to position
the snowblower further away
from tractor.
- Avoid raising snowblower while
in operation.
- Readjust 3-point hitch in order
to position the snowblower
closer to the tractor.
- Follow lubrication
recommendations.
- Replace defective telescopic
members.
- Clean and grease.
- Readjust 3-point hitch in order
to position the snowblower
further away from tractor.
- Follow lubrication instructions.
- Adjust chain to prevent
interference between guard &
equipment.
- Replace worn or damaged
bearing rings.
- Eliminate any interference
between tubes and equipment or
tractor.
- Replace damaged tubes.
P.T.O. SHAFT
POSSIBLE CAUSEPROBLEM CORRECTION
- Insufficient lubrication.
- Excessive working angle.
- Too much sliding under load.
- Tube overlap too-short: minimum
recommended is 6".
- Insufficient lubrication.
- Contaminants (sand, etc.).
- Pin or orifice contaminated by
sand, ice, etc.
- Telescoping members too long,
exerting pressure on locking
device.
- Lack of lubrication.
- Wrong installation of guard
chain.
- Part of the guard in contact with
the equipment.
- Tubes in contact with the
equipment.
- Premature wear of U-joints and/
or bluish color of cross journals.
- Gripping or premature wear of
telescoping members.
- Damaged or jammed locking pin
or bolt.
- Premature wear of guard tube
bearing ring.
- Cut or deformed safety guard
tubes.
8