Vestil PMPS Series User manual

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 1 of 17
PMPS-Series Pallet Handlers
Instruction Manual
Receiving instructions:
After delivery, remove the packaging from the product. Inspect the product closely to determine whether it
sustained damage during transport. If damage is discovered, record a complete description of it on the bill of lading.
If the product is undamaged, discard the packaging.
NOTE:
The end-user is solely responsible for confirming that product design, use, and maintenance comply with laws,
regulations, codes, and mandatory standards applied where the product is used.
Replacement Parts and Technical Support:
For answers to questions not addressed in these instructions and to order replacement parts, labels, and
accessories, call our Technical Service and Parts Department at [phone]. The department can also be
contacted online at http://www.vestilmfg.com/parts_info.htm.
Vestil Manufacturing Corp.
2999 North Wayne Street, P.O. Box 507, Angola, IN 46703
Telephone: [phone] -or-Toll Free [phone]
Fax: [phone]
Web: www.vesti lmfg.co m e-mail: [e-mail]
Table of Contents
Signal Words……………………………………………..……………………………………………………………..…………..2
Hazards……………………………………..……………………………………………..…………………………..…….………2
Specifications…………………………………..…………………………………………………………..…….……………..…. 3
FIG. 1: PMPS-50 exploded parts diagram & bill of materials…..…………………………………………………………….. 4
FIG. 2: PMPS-60 exploded parts diagram & bill of materials………...………………………………………………………..5
*FIGS. 3 - 8: AC and DC modular power unit wiring diagrams, exploded parts diagrams, and layouts…………..… 6- 11
Loading instructions……………………………………………………………………………………………………………....11
FIG. 9: Hydraulic Circuit Diagram………………………………..……………………………………………………………...12
Using the Pallet Handler: Lowering solenoid; Velocity fuse; Air bleeding procedure…………………………………12 - 13
Battery Charger Operation (DC Units only)…………………………………………………………………………………….13
Record of Normal Condition…………………………………………………………………………………………………….. 13
Inspections & Maintenance……………………………………………………………………………………………………… 14
Troubleshooting……………………………………………………………………………………………………………………15
Labeling Diagram…………….....…………………………………………………………………………………………………16
Limited Warranty…...…………………………………………………………………………………………………………..….17
*NOTE: Figures 3A - 8 are views of the modular power unit. These diagrams only apply to PMPS units manufactured
before 12-01-2018. Units manufactured after 12-01-2018 receive a redesigned modular power unit (MPU GEN2).
Diagrams and operating instructions for GEN2 power units are provided in separate MPU-AC/DC manuals.*

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 2 of 17
Signal Words:
This manual classifies personal injury risks and situations that could lead to property damage with SIGNAL
WORDS. A safety message appears with a signal word that describes an improper/dangerous use of the product.
The signal word indicates the seriousness of the injury that could result from the described use.
Identifies a hazardous situation which, if not avoided, WILL result in DEATH or SERIOUS
INJURY. Use of this signal word is limited to the most extreme situations.
Identifies a hazardous situation which, if not avoided, COULD result in DEATH or SERIOUS
INJURY.
Indicates a hazardous situation which, if not avoided, COULD result in MINOR or MODERATE
injury.
Identifies practices likely to result in product/property damage, such as operation that might
damage the product.
Hazards:
Vestil str ives to identify all hazards associated with the use of its products. However, material handling is
dangerous and
no manual can address every risk. The most effective means for preventing accidents is for the
end-user to exercise
common sense and sound judgment whenever using this product.
If this product is used or maintained improperly serious personal injuries or death might result.
ALWAYS use the product properly.
•Read and understand the entire manual before assembling, using or servicing the product.
•Read the manual to refresh your understanding of proper use and maintenance procedures.
•DO NOT attempt to resolve any issue with the product unless you are both authorized to do so and certain that
it will be safe to use afterwards.
•DO NOT modify the product in any way. Unauthorized modifications might make the lifter unsafe to use and
automatically void the Limited Warranty on p. 17.
•DO NOT exceed the (4,000 lb./1,818.2 kg) capacity, i.e. do not attempt to lift more than 4,000 lb.
•Inspect the product before each use. Check the lifter for damage, such as: 1) Cracked, broken or deformed
load-bearing members (forks, fork carriage, mast, wheels, and frame); 2) cracked welds; 3) corrosion or severe
wear; 4) damage to the hydraulic system including leaks in of any part of the cylinder, hoses, reservoir, etc.).
Remove the product from service if damage is discovered. Replace each part that is not in normal condition. DO
NOT use the product until it is fully restored to normal condition. ONLY use manufacturer-approved replacement
parts.
•Cycle the forks all the way up and all the way down. While cycling the forks listen for unusual sounds. Watch
the forks, carriage, cylinder, and carriage rollers for unusual movement. If you discover a malfunction, remove
the unit from service. Notify your supervisor & maintenance personnel about the issue(s). In the event that part of
the hydraulic system is damaged, AVOID contact with pressurized hydraulic oil (leaking from a ruptured hose, for
instance). High pressure oil easily punctures skin and can cause gangrene.
•DO NOT use the lifter unless all machine guards (e.g. the expanded metal mast guard and formed wheel
guards) are in place.
•This product is NOT a personnel lift. DO NOT use it to lift or transport people.
•DO NOT walk or stand beneath the forks at any time.
•DO NOT leave the pallet handler unattended while it is loaded. ALWAYS completely lower the forks until the
load is entirely supported by the ground before leaving the lifter unattended.
•ONLY transport loads with the forks no higher than necessary to support the load and avoid obstacles.
•DO NOT continue to push the “UP” button on the hand control if the forks do not respond. Remove the unit
from service and report the problem to maintenance personnel.
•Always lift pallets properly. Drive forward until the edge of a pallet contacts the heels of the forks.
•ONLY use this lifter on even, level ground.
•NEVER change the setting of the pressure relief valve.
•ALWAYS carefully watch the pallet handler and the load while lifting and transporting loads.
•DO NOT use this device UNLESS all labels are in place, readable, and undamaged. See Labeling Diagram on
p. 16.

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 3 of 17
Specifications:
Dimensions, capacity, and net weight information appear in the following diagrams and table.
Model A B C D E F G H J K Net Weight Capacity
PMPS-50 8 - 37in. 4in. 491/2in. 58in. 91in. 77in. 11/4in. 36in. 3 - 50in. 66in. 825.0 lb.
375.0 kg
4,000 lb.
1,818.2 kg
PMPS-60 8 - 37in. 4in. 491/2in. 58in. 101in. 87in. 11/4in. 36in. 3 - 60in. 66in. 853.4 lb.
387.9 kg
4,000 lb.
1,818.2 kg
A
D
E
C
B
J
G
F
B
H
K

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 4 of 17
FIG. 1: PMPS-50 exploded view and bill of materials
Item
Part no.
Description
Qty.
Item
Part no.
Description
Qty.
1 15-514-087 Weldment, frame 1 17 20-110-009 Bearing, ball 2
2 15-514-024 Weldment, frame, uprights 1 18 33424
Machine bushing, low carbon, plain
finish,
3
/4”-18ga.
4
3 15-538-005 Weldment, carriage 1 19 38-112-019 Pin, hinge pivot 2
4 38-028-007 4” x 36” fork 2 20 68015 External retaining ring, phosphate,
3
/4” 4
5
16-145-031
Bolt with grease zerk, 1/2”-13x31/2”
2
21
38-027-001
Carriage, bearing, roller
4
6 37032
1
/2” nylon insert jam nut 4 22 38-113-005 Spacer 4
7
15-021-012
Telescopic cylinder, PMPS-50
1
23
38-024-015
Roller, end cap
4
8 16-132-216 Caster, wheel, GFN-8/2-W 2 24 94257
Bolt, hex head flat socket, FHSCS,
5
/16”-18x1
1
/4”
4
9 16-111-003 Sleeve bearing for 2” wheel 2 25 12217 Hex bolt, HHCS #5,
1
/2”-13x3
1
/2” 1
10 16-132-081-001 Floor lock assembly, right mount 1 26 33012
Flat washer, low carbon, zinc finish,
1
/2”
1
11 33008
Flat washer, low carbon, USS, zinc-
plated
3
/8”
8 27 33626 Lock washer, zinc plated, 1/2” 1
12 11105
Hex bolt, grade A, zinc-plated, 3/
8
”-
16x1”
4 28 11205
Hex bolt, grade A, zinc plated 1/
2
”-
13x1”
2
13 37024
Nylon insert lock nut, grade 2, zinc-
finish
3
/8”-16
4 29 15-525-007 Handle, weldment 1
14 16-132-227 Caster, 8/3-FWB-NT P 2 30 11209
Hex head bolt, HHCS, ASTM grade A,
zinc plated,
1
/2”-13x1
1
/2”
2
15 11365
Hex bolt, HHCS #2, zinc-plated, 3/
4
”-
10x 3”
2 31 33354
1/
2
” inner diameter Belleville spring
washer
4
16
37039
Nylock nut, zinc-plated, 3/4”-10
2
32
37030
1/2” – 13 Nylon insert lock nut
2
33 99-024-003 Guard/cover/endcap/plug 2

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 5 of 17
FIG. 2: PMPS-60 exploded view and bill of materials
Item Part no. Description Qty. Item Part no. Description Qty.
1
15-514-087
Weldment, frame
1
17
20-110-009
Bearing, ball
2
2 15-514-025 Weldment, frame, uprights 1 18 33424
Machine bushing, low carbon, plain
finish,
3
/4”-18ga.
4
3
15-538-006
Weldment, carriage
1
19
68015
External retaining ring, phosphate, 3/4”
4
4 38-028-007 4” x 36” fork 2 20 94257
Bolt, hex head flat socket, FHSCS,
5
/16”-18x1
1
/4”
4
5
16-145-031
Bolt with grease zerk, 1/2”-13x31/2”
2
21
38-112-019
Pin, hinge pivot
2
6 37032
1
/2” nylon insert jam nut 4 22 38-024-015 Roller, end cap 4
7
15-021-012
Telescopic cylinder, PMPS-50
1
23
38-113-005
Spacer
4
8
16-132-216
Caster, wheel, GFN-8/2-W
2
24
38-027-001
Carriage, bearing, roller
4
9
16-111-003
Sleeve bearing for 2” wheel
2
25
12217
Hex bolt, HHCS #5, 1/2”-13x31/2”
1
10 16-132-081-001 Floor lock assembly, right mount 1 26 33012
Flat washer, low carbon, zinc finish,
1
/2”
1
11 33008
Flat washer, low carbon, USS, zinc-
plated
3
/8”
8 27 33626 Lock washer, zinc plated, 1/2” 1
12 11105
Hex bolt, grade A, zinc-plated, 3/
8
”-
16x1”
4 28 11205
Hex bolt, grade A, zinc plated 1/
2
”-
13x1”
2
13 37024
Nylon insert lock nut, grade 2, zinc-
finish
3
/8”-16
4 29 15-525-007 Handle, weldment 1
14 16-132-227 Caster, 8/3-FWB-NT P 2 30 11209
Hex head bolt, HHCS, ASTM grade A,
zinc plated,
1
/2”-13x1
1
/2”
2
15 11365
Hex bolt, HHCS #2, zinc-plated, 3/
4
”-
10x 3”
2 31 33354
1/
2
” inner diameter Belleville spring
washer
4
16
37039
Nylock nut, zinc-plated, 3/4”-10
2
32
37030
1/2” – 13 Nylon insert lock nut
2
33
99-024-003
Guard/cover/endcap/plug
2

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 6 of 17
FIG. 3A: DC modular power unit exploded parts diagram and parts list
*See note in table of contents on cover page.
Item Part no. Description Quantity
1 99-016-933 Base bracket 1
2 21-034-008 Charger (Soniel) 1
3 01-033-024 24”, 18/3, 4-pin plug 1
4 37927 Tinnerman clip 4
5 99-023-001 Reservoir 1
6 99-034-013 Battery strap 1
7 99-139-003 Battery 1
8 01-116-003 Breather 1
9 15-533-013 Cable, battery, 23” black 1
10 15-533-014 Cable, battery, 23” red 1
11
23305
33688
33008
3/
8
” – 16 x 1” utility grade bolt
3/8” high collar lock washer
3
/8” flat washer
2
2
2
12 99-135-011 4”, 12VDC motor w/ tang dr. 1
13 15-022-004 12V start solenoid relay 1
14 99-145-164 Worm gear hose clamp 1
15 99-639-001 Battery gauge 1
16 99-034-054 Base, contact block 3
17 01-022-003 Contact block N.O. 3
18 99-034-055
Operator, black, non-
illuminated
2
19 01-022-008 Key switch, 2-position 1
20 01-134-007 Legend, ON - OFF 1
21 99-024-029 Fiberglass cover 1
22 99-145-061 Clamp, worm gear 1
23 01-143-906 Pump 1
24 01-627-010
Manifold assembly (exploded
view on p. 12)
1
25 29201
1/
4
in. – 20 x 13/
4
in. TPHMS
zinc-plated
2
26 29185
1/
4
in. – 20 x 1in. TPHMS
zinc-plated
2
27
23255
33687
SHCS utility grade
High collar lock washer
4
4
28 99-033-024 Molded cord 1
29 21-034-025 Connector, charge 1
30 99-051-014 1in. hook and loop press 10”

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 7 of 17
FIG. 4: 12VDC modular power unit electrical circuit diagram
*See note in table of contents on cover page.
Limit switch or jumper
wire used where
applicable.
FIG. 3B: Exploded view of DC manifold assembly (item no. 24 in FIG. 3A)
*See note in table of contents on cover page.
Item Part no. Description Quantity
31 99-144-023 O-ring 1
32 99-144-022 O-ring 1
33 99-153-015 Valve, cartridge, normally closed 1
34 99-034-010 Coil with weather-tite plug 1
35 99-153-006 Valve, pressure relief 1
36 99-144-007 O-ring 1
37 99-531-005 Filter 1
38 99-153-038 Flow control, 1.0GPM 1
39 01-127-010 Manifold 1
40 99-116-033 MJ-MAORB 90 degree 1
41 99-153-011 Valve, check 1
Overcurrent & short-circuit protection as well as system disconnect must be provided.

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 8 of 17
FIG. 5B: 12VDC modular power unit layout (part 2 of 2)
*See note in table of contents on cover page.
FIG. 5A: 12VDC modular power unit layout (part 1 of 2)
*See note in table of contents on cover page.

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 9 of 17
FIG. 6A: AC modular power unit exploded parts diagram and parts list
*See note in table of contents on cover page.
Item Part no. Description Qty.
1 99-016-933 Base bracket 1
2 21-034-008 Electrical box (see FIG. 6B) 1
3 21-034-005 AC adaptor plug 1
4 37927 Tinnerman clip 4
5 99-023-001 Reservoir 1
6 Motor brace 1
7
23255
33687
5/
16
” – 18 x 1” utility grade bolt
5
/16” high collar lock washer
4
4
8 01-116-003 Breather 1
9 29185
1/
4
” – 20 x 1” TPHMS z-plated
screw
1
10 29201
1/
4
” – 20 x 13/
4
” TPHMS z-plated
screw
1
11
23305
33688
33008
3/
8
” – 16 x 1” utility grade bolt
3/8” high collar lock washer
3
/8” flat washer
2
2
2
12 01-627-010 Manifold (see FIG. 6C) 1
13 01-143-906 Pump 1
14 99-145-061 Worm gear hose clamp 1
15 99-024-029 Fiberglass cover 1
16 99-034-054 Base, contact block 3
17 01-022-003 Contact block N.O. 3
18 99-034-055 Operator, black, non-illuminated 2
19 01-022-008 Key switch, 2-position 1
20 01-134-007 Legend, ON - OFF 1
21 99-135-003 Motor, electric, 1ph. 1
22 99-145-061 Clamp, worm gear, hose 1
23 01-143-906 Pump 1
24 01-627-010
Manifold assembly (exploded
view on p. 12)
1
25 29201
1/
4
in. – 20 x 13/
4
in. TPHMS zinc-
plated
2
26 29185
1/
4
in. – 20 x 1in. TPHMS zinc-
plated
2
27
23255
33687
SHCS utility grade
High collar lock washer
4
4
28 99-033-024 Molded cord 1
29 21-034-025 Connector, charge 1
30 99-051-014 1in. hook and loop press 10”

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 10 of 17
FIG. 6B: Electrical box (Item no. 2 in FIG. 6A)+
*See note in table of contents on cover page.
Item
Part no.
Description
Qty.
1
71616
10 – 32 x 5/
8
” TSHMS screws
4
2
01-129-001
Transformer
1
3
132560
Motor contactor
1
4 27531
10 – 32 x 1/
4
” PSHMS zinc-plated
screws
4
5 32028
8 – 18 x
1/
2
” HWH TEK drill and tap
screws
4
6
99-034-941
Aluminum din rail
3”
7
01-029-006
5/16” – 18 x 1” utility grade bolt
1
8
AB66JP
6” x 6” enclosure plate
1
9 99-034-037
3/
8
” (1/
2
” knockout) Romex 2-screw NM
clamp connector
4
10
01-127-010
LHL standard manifold, 3” boss
1
11
99-116-033
3/8” – 16 x 1” utility grade bolt
2
12
99-153-011
Check valve
1
13
99-144-023
O-ring
1
14
99-144-022
O-ring
1
15
99-153-015
Normally closed cartridge valve
1
16
99-034-008
24VAC coil
1
17
99-153-006
Pressure relief valve
1
18
99-144-007
O-ring
1
19
99-531-005
Filter
1
20
99-153-038
Flow control, 1.0GPM
1
FIG. 6C: Manifold (item no. 12 in FIG. 6A)
*See note in table of contents on cover page.
FIG. 7: 115VAC modular power unit electrical circuit diagram
*See note in table of contents on cover page.
Limit switch or jumper wire
used where applicable.
NOTE: Overcurrent
& short-circuit
protection as well as
system disconnect
must be provided.

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 11 of 17
Loading instructions:
The capacity of this PMPS-series lifter is 4,000 lb.
Every unit is labeled with this information. See label
287 in Labeling Diagram on p. 16. DO NOT attempt to
lift loads that exceed the capacity! Personal injury or
permanent damage to the lifter might occur.
When loading the PMPS, always follow these
guidelines:
1. The load should firmly contact the heels of the forks
2. DO NOT apply a load to the tips of the forks
3. Center the load on the forks
4. Only transport loads in the lowered position
5. Apply the floor lock and both caster brakes (only
one caster shown in diagram at right) whenever
the lifter is not in use. They should also be applied
anytime a load is being elevated. To apply the
floor lock, press down on the lock lever. Apply the
caster brakes by pressing down the brake lever
until the brake firmly contacts the top of the wheel.
RESPONSIBILITIES OF OWNERS & USERS:
1.) Inspect and maintain this product in accordance with this manual. See Inspections & Maintenance on p. 14. ONLY
use the pallet handler if it is in normal operating condition.
2.) ONLY use this device after you read and understand all operating procedures and safe use recommendations
provided in this instruction manual.
3.) Never overload this lifter. The capacity of your unit is provided on label 287 (see Labeling Diagram on p. 16) and in
the table on p. 3.
FIG. 8: 115VAC modular power unit layout
*See note in table of contents on cover page.
Lock lever
Floor
lock
Brake
contacts
top of
wheel
Caster
brake
Brake
lever

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 12 of 17
Using the Pallet Handler:
Pushbutton controls are standard equipment on PMPS series pallet handlers, i.e. a handheld controller as well as
control buttons on the housing of the modular power unit. To raise or lower the fork carriage, press the appropriately
marked button. When either button is released, the carriage will maintain position until the UP or DOWN button is
pressed.
OPERATION:
To raise the forks, press the UP button on the pushbutton controller. This starts the electric motor which turns the
hydraulic pump. Oil from the reservoir (inside the modular power unit) flows through the suction filter and into the pump.
The pump delivers pressurized oil to the hydraulic cylinder through a check valve. The check valve allows oil to flow only
in one direction, i.e. to the cylinders, and prevents oil from flowing back into the pump circuit when the pump stops. This
traps oil in the cylinder, which allows the forks to maintain elevation after the control button is released.
If a load exceeds the capacity of the lifter, pressure will build up in the circuit between the pump and the cylinders
when the UP button is pressed. This pressure forces the relief valve to unseat which in turn allows oil to circulate back to
the reservoir instead of to the cylinder. This pressure relief mechanism prevents damage to the hydraulic system.
To lower the forks, press the DOWN button. This energizes the lowering solenoid valve coil, which unseats the poppet
valve and allows oil to return to the reservoir from the cylinders through the pressure-compensated flow control valve.
Releasing the DOWN button de-energizes the solenoid and closes the valve poppet. The poppet valve and check valve
together prevent oil from returning to the reservoir and cause the cylinders to stop retracting. The forks remain elevated
until the operator presses a button on the pushbutton controller again.
LOWERING SOLENOID VALVE:
The pallet handler is equipped with a cartridge lowering valve. If a malfunction occurs while lowering the fork carriage
(item no. 3; p. 4 & 5), refer to the solutions presented in Troubleshooting on p. 15.
If a malfunction of this valve occurs, clean it by applying the following procedure:
1. Completely lower the forks.
2. Use a thin tool to press the poppet in from the bottom and open the valve.
3. Repeat several times while immersing the valve in kerosene or mineral spirits; then blow dry the cleaned valve.
4. Blow compressed air through the valve while holding it open as described in step 2.
11/
2
in. x 18in.
displacement
cylinder with
internal
velocity fuse
Motor
Hydraulic
pump
LC/TC
LC/TC
LY/FC
Pressure
check
va l ve
Lowering valve
Pressure
compensated
flow control
Adjustable
pressure
relief valve
100 micron
suction filter
10 micron
return filter
FIG. 9: Hydraulic circuit diagram (electrically powered units)

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 13 of 17
5. Inspect the O-rings and the PTFE washer (polytetrafluoroethylene). If either component is damaged (for example,
torn or cut) replace it.
6. Reinstall the valve. The valve should be tightened to approximately 20 ft.-Ib. of torque.
VELOCITY FUSE:
There is a brass velocity fuse with a stainless steel spring in the base of each cylinder. If a fitting leaks or a hose is ruptured,
the platform lowers more rapidly. If the rate of descent exceeds the preset speed, the Velocity Fuse will shut. As long as the
fuse is shut oil cannot flow and the forks will remain stationary until pressure is reestablished. This safety feature reduces the
possibility of personal injury or damage to the pallet handler (or load) that could result if the forks suddenly fall.
If air enters the hydraulic system, the velocity fuse might activate although no failure occurs. To reset the velocity fuse,
activate the pump by jogging the UP button. Immediately after resetting the velocity fuse, lower the forks and remove the load.
Then, cycle the carriage (raise the forks all the way to the top of the mast and back down) several times to purge air from the
system.
AIR BLEEDING PROCEDURE:
If the forks descend very slowly or fail to lower at all, air probably is trapped in the hydraulic circuit and must be bled from
the system. The PMPS has a “bleeder” screw at the top of the cylinder. To bleed air from the hydraulic circuit, follow these
directions.
1.) Completely unload the forks.
2.) Loosen the bleeder screw at the top of the cylinder by giving it approximately 1/4to 1/2turn to allow trapped air to escape.
Jog the motor to push air out of the system.
3.) When the cylinder is free of air, only clear hydraulic fluid will flow from the bleeder screw opening. When you observe only
oil flowing from the bleeder, retighten the bleeder screw.
Battery Charger Operation (DC units only):
Working on lead-acid batteries is dangerous. Batteries contain sulfuric acid and produce explosive gases.
A battery explosion could result in loss of eyesight or serious burns.
•DO NOT smoke near the battery or expose the battery to a spark or flame.
•ONLY charge batteries in dry, well-ventilated locations.
•DO NOT lay tools or metallic items on top of a battery. NEVER touch both terminals simultaneously! Remove personal
items such as rings, bracelets, necklaces, and watches. A battery can produce enough voltage to weld jewelry to metal.
•Always have plenty of fresh water and soap nearby in case contact with battery acid occurs.
•Operating the battery with low voltage can cause premature motor contact failure.
•The charger has an external ground wire (small green wire). During installation the charger must be grounded to the equipment
which it is connected to. Be sure this wire is always connected to the chassis, frame, or other metallic surface considered ground.
•Confirm that all battery connections are sound and clean. Remove all accumulated deposits on the terminals.
•Replace defective electrical cords and wires immediately.
•DO NOT use the charger if the flanged inlet is damaged.
•DO NOT connect the charger to a damaged extension cord.
Every DC powered PMPS is equipped with an onboard battery charger with a flanged electrical inlet. The charger is current
limited and will not exceed its rated output even if loads are placed on the battery while it is charging. The charger fuse will blow if it
is connected in reverse polarity.
To charge the battery:
1.) Plug the charger into an 115V, 60 Hz receptacle by connecting the flanged inlet on the charger to an extension cord. Plug the
other end of the cord into a wall socket. Use a short, thick extension cord.
2.) When properly connected, the charge LED will indicate the status of charge current flowing to the battery.
•If only the red LED is on, the charger is providing full output to the battery.
•If both the red and green LED's are on, the charger is "topping off" the battery.
•When only the green LED is on, the unit is providing a "float" (maintenance) charge.
•DO NOT leave the charger on for long periods after the battery is fully charged.
3.) Unplug the charger before using the lifter. Failure to do so could cause damage to cords, receptacles, etc.
TROUBLESHOOTING--If the charger does not work:
1) Make sure all battery connections are sound.
2) Confirm that the AC power source (e.g. wall socket) is supplying power.
3) Examine the fuse. See Fig. 4 on p. 7. Replace only with a fuse having the same rating as the original fuse.
4) Determine battery condition. It may take some time before current begins to flow through a highly sulfated battery.
Record of Normal Condition:
Before using the lifter for the first time, create a written record of its appearance and functions. Include detailed descriptions
about the frame, wheels & casters, forks & fork carriage, mast, cylinder, and chain drive. Use the unit to lift a load. Describe the
motion of the fork carriage as it rises and lowers. Also describe how the unit sounds as the carriage cycles up-and-down. Thoroughly
photograph the unit including all labels. Add the photographs to the record. This record establishes normal condition. When
conducting inspections in the future, compare your observations to this record to determine if a component is in normal condition or
requires repair or replacement.

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 14 of 17
Inspections & Maintenance:
Regular maintenance is essential to keep this product in nominal condition. Before beginning
maintenance, completely unload the forks and lower them. Always use this product in accordance with the
instructions in this manual and consistently with any training relevant to machines, devices, etc. used in conjunction
with this product.
oRelieve hydraulic pressure whenever the unit is not in use by fully lowering the forks and turning off system power.
oKeep the product clean & dry. Lubricate moving parts at least once per month.
oONLY use manufacturer-approved replacement parts. Vestil is not responsible for issues or malfunctions that
result from the use of unapproved replacement parts.
oONLY use ISO AW-32 hydraulic fluid or its equal in the hydraulic system. Do not use brake fluid or jack oils in the
hydraulic system. If oil is needed, use an anti-wear hydraulic oil with a viscosity grade of 150 SUS at 100°F, (ISO 32
cSt @ 40°C), or Dexron transmission fluid.
oContact the manufacturer for MSDS information.
Inspections: Refer to the appropriate Exploded View on p. 4 or 5.
(A) Before Each Use--Inspect the following:
1. Electrical system: inspect the power unit and electrical wiring for cuts or frays.
2. Casters: examine the casters and confirm normal operating condition.
3. Hydraulic hoses: check for pinches, punctures, and loose connections.
4. Structure: inspect the frame for deformations and cracked welds.
5. Forks, carriage and mast: cycle the forks up and down while listening and watching unusual noise, motion, or
binding.
6. Pushbutton controller: inspect the controller and look for damage that exposes.
(B) Monthly Inspections--at least once per month check the following:
1. Oil level. Lower the forks completely and unload them. Oil should be 1” - 11/2" below the top of the
tank/reservoir. Add oil as necessary. Look for oil leaking from hoses, the cylinder, or the reservoir. See
Troubleshooting on p. 15 and correct issues as instructed.
2. [DC models only] Battery: check the water level in the battery.
3. Clevis and pivot points: inspect for excessive wear.
4. Hydraulic system, wiring, and pushbutton control: Check for worn or damaged hydraulic hoses, electrical
wires, and cords. Repair as necessary.
5. Carriage rollers: check rollers and retaining hardware for normal condition.
6. Forks, carriage and mast: cycle the forks up (to the top of the mast) and back down while listening and
watching for unusual noise, motion, or binding.
7. Labels: confirm that all labels are in place and easily readable. See Labeling diagram on p. 16.
8. Surfaces: remove dirt and debris.
(C) Yearly Inspection
Hydraulic oil should be changed at least once a year or sooner if the oil darkens or becomes gritty. Flush the reservoir
before refilling. Similarly, if the oil appears milky, water is present and the oil should be changed.
Maintenance:
Implement a maintenance program to ensure the proper function and safety of the device. ANSI/ITSDF standard
B56.10 provides some recommended maintenance procedures. The following steps should be utilized in conjunction
with those recommendations.
Step 1: Tag the unit, “Out of Service.”
Step 2: Conduct a “Before each use”. If deformity, corrosion, rusting, or excessive wear of structural members is
present, DO NOT use the handler. Contact Vestil for instructions. If the carriage does not move smoothly or makes
noise as it moves up or down the mast, apply a silicon wax or silicon spray to the inside of the mast frame.
Step 3: Remove any dirt or other matter from the forks and other surfaces.
Step 4: Perform all other necessary adjustments and/or repairs. DO NOT modify the lifter.
Step 5: Make a dated record of the repairs, adjustments and/or replacements.
Replacement Parts:
Our company carefully selects parts for our equipment. Be certain that only manufacturer approved replacement parts
are used. To order parts for your equipment, contact Technical Service. Contact information appears on the cover page
of this manual. In any correspondence with the factory please include the Serial Number which is inscribed on the
nameplate of the equipment. Use only the part numbers provided in this Owner's Manual. When ordering parts for AC
power units, please be prepared with the motor phase and voltage of the equipment.

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 15 of 17
Troubleshooting:
Contact technical support for assistance resolving any issues not discussed in this section.
Issue
Possible Cause
Remedy
1. Forks do not raise and
motor does not run
a. Low battery voltage. (Check light)
b. All chassis connections to negative post of
battery not made well.
a. Recharge battery
b. Check and tighten or clean connections if
necessary.
2. Forks do not raise but
motor is running or
humming.
c. Voltage at motor terminals might be too low
to run pump at existing load.
d. Fluid level in reservoir is low.
e. Load exceeds capacity requirements.
Relief valve is allowing hydraulic fluid to flow
back into the reservoir.
f. Suction filter is clogged, starving pump.
g. Suction line fittings are loose allowing air to
enter.
h. Filter/Breather cap on tank is clogged.
i. Lowering solenoid valve might be energized
by faulty wiring or might be stuck open.
j. Hydraulic pump not operating.
c. Measure voltage at motor terminals (as near as
possible) while pump runs under load. Check for loose
wiring connections.
d. Add fluid. See p. 14 for proper fluid level.
e. DO NOT CHANGE RELIEF VALVE SETTING.
Instead, reduce the load to rated capacity.
f. Remove filter and clean.
g. Inspect all fittings for proper tightness.
h. Remove cap and clean.
i. Remove lowering solenoid valve. Check and clean.
Refer to Lowering Solenoid Valves on p. 12-13.
j. Disconnect hydraulic line from power unit. Put
pressure line in a large container and operate the
pump. If no output, check the pump motor coupling
and correct as appropriate. If pump is worn, contact
factory for replacement parts.
3. Unit rises too slowly.
k. Foreign material stuck in lowering solenoid
valve causing fluid to flow back into the
reservoir.
l. Foreign material clogging suction filter or
breather cap, or a hose is pinched.
m. Low motor voltage.
n. Unit overloaded.
o. Inoperative pump.
k. Lower the forks. Remove the lowering solenoid
valve and clean. See Lowering Solenoid Valves on p.
12-13.
l. Correct as appropriate. See also, 2(f), (h) above.
m. See 1 (b)
n. See 2 (e)
o. See 2 (j)
4. Motor labors or is
excessively hot.
p. Battery voltage too low.
q. Oil starvation causing pump to bind &
overheat. [NOTE: If this occurs, pump can be
permanently damaged.]
r. Binding cylinder.
p. See 1 (b)
q. See 2 (d), (f), (g), (h), (j)
r. Align cylinder correctly.
5. Forks rise in jerks or are
spongy when elevated.
s. Fluid starvation.
t. Air in system.
s. See 2 (d), (f), (g), (j)
t. See Air Bleeding Procedure p. 13.
6. Unit lowers too slowly
when loaded.
u. Lowering solenoid valve filter screen
clogged.
v. Pinched tube or hose.
w. Foreign material in flow control valve.
x. Binding cylinders.
y. Foreign material in velocity fuse.
u. Remove lowering solenoid valve; clean filter screen.
v. Correct as appropriate.
w. Remove and clean flow control valve. Refer to
Hydraulic Circuit Diagram on p. 12.
x. Align cylinders correctly.
y. Remove and clean velocity fuse. Hydraulic Circuit
Diagram on p. 12.
7. Forks lower too quickly.
z. Foreign material stuck in flow control valve.
Carriage initially lowers at a normal rate but
accelerates as the carriage descends.
z. Remove flow control valve from the valve block and
clean. Refer to Hydraulic Circuit Diagram on p. 12.
8. Forks rise then lower
slowly on their own.
aa. Lowering solenoid valve may be
incorrectly wired or is stuck open
bb. Check valve stuck open.
cc. Leaking hoses, fittings, pipes.
dd. Cylinder packing is worn or damaged.
aa. See 3 (k).
bb. Remove and clean check valve. See p.7 or 10.
cc. See 2 (c) above.
dd. Replace packing (contact factory for replacement
parts).
9. Fork carriage elevates
but does not lower.
ee. Incorrect lowering solenoid valve wiring.
ff. Lowering solenoid valve is stuck.
gg. Faulty lowering solenoid coil.
hh. Binding cylinders.
ii. Air present in the hydraulic system causing
the velocity fuse to activate
ee. Correct per diagram. See p. 7 or 10.
ff. Lightly tap down the solenoid coil body to seat it
properly. (DO NOT hit coil hard as it will permanently
damage the internal system. DO NOT remove the
solenoid valve from the block because the carriage will
descend dangerously quickly.)
gg. Remove and replace. DO NOT remove the
lowering solenoid valve from the block because the
forks will lower in an uncontrolled manner.
hh. See 4 (r).
ii. To unlock, pressurize the hydraulic system.

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 16 of 17
Labeling diagram:
Each unit should be labeled as shown in the diagram. However, label content and location are subject to change
without notice so your product might not be labeled exactly as shown. Compare the diagram below to your Record
of Normal Condition. If there are any differences between actual labeling and this diagram, adapt the diagram to
reflect actual labeling. Replace all labels that are damaged, missing, or not easily read (e.g. faded). To order
replacement labels or to inquire whether your unit is properly labeled, contact the technical service and parts
department online at http://www.vestilmfg.com/parts_info.htm or by calling [phone] and asking for the Parts
Department.
A
A: Label 824
B: Label 643
A
B
B
C
C
C: Label 287
D: Label 527
D
D
F
B
B
E (inside
MPU on
oil tank)
E: Label 206 (inside MPU on oil tank)
F: Label 295 (on MPU cover)
NOTE: Labels E and F apply
to the modular power unit of
PMP
S units manufactured
before 12-01-
2018. Units
manufactured after 12-01-
2018 receive a redesigned
modular power unit (MPU
GEN2). Labeling diagrams for
GEN2 power units are
provided in separate MPU-
AC/DC manuals.

Table of Contents Re v. 2/25/2019 PMPS MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 17 of 17
LIMITED WARRANTY
Vestil Manufacturing Corporation (“Vestil”) warrants this product to be free of defects in material and workmanship
during the warranty period. Our warranty obligation is to provide a replacement for a defective, original part covered by
the warranty after we receive a proper request from the Warrantee (you) for warranty service.
Who may request service?
Only a warrantee may request service. You are a warrantee if you purchased the product from Vestil or from an
authorized distributor AND Vestil has been fully paid.
Definition of “original part”?
An original part is a part used to make the product as shipped to the Warrantee.
What is a “proper request”?
A request for warranty service is proper if Vestil receives: 1) a photocopy of the Customer Invoice that displays the
shipping date; AND 2) a written request for warranty service including your name and phone number. Send requests
by one of the following methods:
US Mail Fax Email
Vestil Manufacturing Corporation [phone] [e-mail]
2999 North Wayne Street, PO Box 507 Phone Enter “Warranty service request”
Angola, IN 46703 [phone] in subject field.
In the written request, list the parts believed to be defective and include the address where replacements should be
delivered. After Vestil receives your request for warranty service, an authorized representative will contact you to
determine whether your claim is covered by the warranty. Before providing warranty service, Vestil will require you to
send the entire product, or just the defective part (or parts), to its facility in Angola, IN.
What is covered under the warranty?
The warranty covers defects in the following original, dynamic parts: motors, hydraulic pumps, motor controllers,
and cylinders. It also covers defects in original parts that wear under normal usage conditions (“wearing parts”), such
as bearings, hoses, wheels, seals, brushes, and batteries.
How long is the warranty period?
The warranty period for original dynamic components is 1 year. For wearing parts, the warranty period is 90 days.
Both warranty periods begin on the date Vestil ships the product to the Warrantee. If the product was purchased from
an authorized distributor, the periods begin when the distributor ships the product. Vestil may, at its sole discretion,
extend a warranty period for products shipped from authorized distributors by up to 30 days to account for shipping
time.
If a defective part is covered by the warranty, what will Vestil do to correct the problem?
Vestil will provide an appropriate replacement for any covered part. An authorized representative of Vestil will
contact you to discuss your claim.
What is not covered by the warranty?
The Warrantee (you) is responsible for paying labor costs and freight costs to return the product to Vestil for
warranty service.
Events that automatically void this Limited Warranty.
•Misuse;
•Negligent assembly, installation, operation or repair;
•Installation/use in corrosive environments;
•Inadequate or improper maintenance;
•Damage sustained during shipping;
•Collisions or other accidents that damage the product;
•Unauthorized modifications: Do not modify the product IN ANY WAY without first receiving written authorization
from Vestil.
Do any other warranties apply to the product?
Vestil Manufacturing Corp. makes no other express warranties. All implied warranties are disclaimed to the extent
allowed by law. Any implied warranty not disclaimed is limited in scope to the terms of this Limited Warranty. Vestil
makes no warranty or representation that this product complies with any state or local design, performance, or safety
code or standard. Noncompliance with any such code or standard is not a defect in material or workmanship.